layer_tree_impl.cc revision 90dce4d38c5ff5333bea97d859d4e484e27edf0c
12a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Copyright 2011 The Chromium Authors. All rights reserved. 22a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 32a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// found in the LICENSE file. 42a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 52a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/trees/layer_tree_impl.h" 62a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/debug/trace_event.h" 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/animation/keyframed_animation_curve.h" 92a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/animation/scrollbar_animation_controller.h" 10b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)#include "cc/debug/traced_value.h" 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/layers/heads_up_display_layer_impl.h" 12c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "cc/layers/render_surface_impl.h" 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/layers/scrollbar_layer_impl.h" 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/trees/layer_tree_host_common.h" 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/trees/layer_tree_host_impl.h" 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "ui/gfx/size_conversions.h" 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "ui/gfx/vector2d_conversions.h" 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace cc { 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)LayerTreeImpl::LayerTreeImpl(LayerTreeHostImpl* layer_tree_host_impl) 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : layer_tree_host_impl_(layer_tree_host_impl), 232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) source_frame_number_(-1), 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) hud_layer_(0), 25c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_scroll_layer_(NULL), 26c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) currently_scrolling_layer_(NULL), 27c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_layer_scroll_offset_delegate_(NULL), 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) background_color_(0), 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) has_transparent_background_(false), 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) page_scale_factor_(1), 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) page_scale_delta_(1), 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) sent_page_scale_delta_(1), 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) min_page_scale_factor_(0), 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) max_page_scale_factor_(0), 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scrolling_layer_id_from_previous_tree_(0), 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) contents_textures_purged_(false), 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) viewport_size_invalid_(false), 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) needs_update_draw_properties_(true), 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) needs_full_tree_sync_(true) { 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)LayerTreeImpl::~LayerTreeImpl() { 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Need to explicitly clear the tree prior to destroying this so that 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // the LayerTreeImpl pointer is still valid in the LayerImpl dtor. 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_layer_.reset(); 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)static LayerImpl* FindRootScrollLayerRecursive(LayerImpl* layer) { 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!layer) 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NULL; 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (layer->scrollable()) 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer; 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) for (size_t i = 0; i < layer->children().size(); ++i) { 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LayerImpl* found = FindRootScrollLayerRecursive(layer->children()[i]); 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (found) 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return found; 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NULL; 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::SetRootLayer(scoped_ptr<LayerImpl> layer) { 65c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (root_scroll_layer_) 66c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_scroll_layer_->SetScrollOffsetDelegate(NULL); 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_layer_ = layer.Pass(); 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) currently_scrolling_layer_ = NULL; 69c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_scroll_layer_ = NULL; 702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) layer_tree_host_impl_->OnCanDrawStateChangedForTree(); 722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::FindRootScrollLayer() { 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_scroll_layer_ = FindRootScrollLayerRecursive(root_layer_.get()); 762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 77c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (root_scroll_layer_) { 78c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_scroll_layer_->SetScrollOffsetDelegate( 79c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_layer_scroll_offset_delegate_); 80c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 81c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (root_layer_ && scrolling_layer_id_from_previous_tree_) { 832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) currently_scrolling_layer_ = LayerTreeHostCommon::FindLayerInSubtree( 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_layer_.get(), 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scrolling_layer_id_from_previous_tree_); 862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scrolling_layer_id_from_previous_tree_ = 0; 892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)scoped_ptr<LayerImpl> LayerTreeImpl::DetachLayerTree() { 922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Clear all data structures that have direct references to the layer tree. 932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scrolling_layer_id_from_previous_tree_ = 942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) currently_scrolling_layer_ ? currently_scrolling_layer_->id() : 0; 95c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (root_scroll_layer_) 96c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_scroll_layer_->SetScrollOffsetDelegate(NULL); 972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_scroll_layer_ = NULL; 982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) currently_scrolling_layer_ = NULL; 992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) render_surface_layer_list_.clear(); 1012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) set_needs_update_draw_properties(); 1022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return root_layer_.Pass(); 1032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::PushPropertiesTo(LayerTreeImpl* target_tree) { 106c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) target_tree->SetLatencyInfo(latency_info_); 107c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) latency_info_.Clear(); 1082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->SetPageScaleFactorAndLimits( 1092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) page_scale_factor(), min_page_scale_factor(), max_page_scale_factor()); 1102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->SetPageScaleDelta( 1112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->page_scale_delta() / target_tree->sent_page_scale_delta()); 1122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->set_sent_page_scale_delta(1); 1132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // This should match the property synchronization in 1152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // LayerTreeHost::finishCommitOnImplThread(). 1162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->set_source_frame_number(source_frame_number()); 1172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->set_background_color(background_color()); 1182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->set_has_transparent_background(has_transparent_background()); 1192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (ContentsTexturesPurged()) 1212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->SetContentsTexturesPurged(); 1222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) else 1232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->ResetContentsTexturesPurged(); 1242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (ViewportSizeInvalid()) 1262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->SetViewportSizeInvalid(); 1272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) else 1282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->ResetViewportSizeInvalid(); 1292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (hud_layer()) 1312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->set_hud_layer(static_cast<HeadsUpDisplayLayerImpl*>( 1322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LayerTreeHostCommon::FindLayerInSubtree( 1332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->root_layer(), hud_layer()->id()))); 1342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) else 1352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) target_tree->set_hud_layer(NULL); 1362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)LayerImpl* LayerTreeImpl::RootScrollLayer() const { 1392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(IsActiveTree()); 1402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return root_scroll_layer_; 1412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)LayerImpl* LayerTreeImpl::RootClipLayer() const { 1442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return root_scroll_layer_ ? root_scroll_layer_->parent() : NULL; 1452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)LayerImpl* LayerTreeImpl::CurrentlyScrollingLayer() const { 1482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(IsActiveTree()); 1492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return currently_scrolling_layer_; 1502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::SetCurrentlyScrollingLayer(LayerImpl* layer) { 1532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (currently_scrolling_layer_ == layer) 1542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 1552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (currently_scrolling_layer_ && 1572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) currently_scrolling_layer_->scrollbar_animation_controller()) 1582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) currently_scrolling_layer_->scrollbar_animation_controller()-> 159c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DidScrollGestureEnd(CurrentFrameTimeTicks()); 1602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) currently_scrolling_layer_ = layer; 1612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (layer && layer->scrollbar_animation_controller()) 1622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) layer->scrollbar_animation_controller()->DidScrollGestureBegin(); 1632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::ClearCurrentlyScrollingLayer() { 1662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SetCurrentlyScrollingLayer(NULL); 1672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scrolling_layer_id_from_previous_tree_ = 0; 1682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::SetPageScaleFactorAndLimits(float page_scale_factor, 1712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) float min_page_scale_factor, float max_page_scale_factor) { 1722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!page_scale_factor) 1732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 1742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) min_page_scale_factor_ = min_page_scale_factor; 1762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) max_page_scale_factor_ = max_page_scale_factor; 1772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) page_scale_factor_ = page_scale_factor; 1782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::SetPageScaleDelta(float delta) { 1812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Clamp to the current min/max limits. 1822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) float total = page_scale_factor_ * delta; 1832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (min_page_scale_factor_ && total < min_page_scale_factor_) 1842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) delta = min_page_scale_factor_ / page_scale_factor_; 1852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) else if (max_page_scale_factor_ && total > max_page_scale_factor_) 1862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) delta = max_page_scale_factor_ / page_scale_factor_; 1872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (delta == page_scale_delta_) 1892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 1902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) page_scale_delta_ = delta; 1922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (IsActiveTree()) { 1942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LayerTreeImpl* pending_tree = layer_tree_host_impl_->pending_tree(); 1952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (pending_tree) { 1962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK_EQ(1, pending_tree->sent_page_scale_delta()); 197c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) pending_tree->SetPageScaleDelta( 198c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) page_scale_delta_ / sent_page_scale_delta_); 1992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) UpdateMaxScrollOffset(); 2032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) set_needs_update_draw_properties(); 2042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)gfx::SizeF LayerTreeImpl::ScrollableViewportSize() const { 2072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return gfx::ScaleSize(layer_tree_host_impl_->VisibleViewportSize(), 2082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1.0f / total_page_scale_factor()); 2092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::UpdateMaxScrollOffset() { 2122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!root_scroll_layer_ || !root_scroll_layer_->children().size()) 2132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 2142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) gfx::Vector2dF max_scroll = gfx::Rect(ScrollableSize()).bottom_right() - 2162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) gfx::RectF(ScrollableViewportSize()).bottom_right(); 2172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The viewport may be larger than the contents in some cases, such as 2192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // having a vertical scrollbar but no horizontal overflow. 2202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) max_scroll.ClampToMin(gfx::Vector2dF()); 2212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_scroll_layer_->SetMaxScrollOffset(gfx::ToFlooredVector2d(max_scroll)); 2232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::UpdateSolidColorScrollbars() { 2262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(settings().solid_color_scrollbars); 2272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LayerImpl* root_scroll = RootScrollLayer(); 2292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(root_scroll); 2302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(IsActiveTree()); 2312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) gfx::RectF scrollable_viewport( 2332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) gfx::PointAtOffsetFromOrigin(root_scroll->TotalScrollOffset()), 2342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ScrollableViewportSize()); 2352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) float vertical_adjust = 0.0f; 2362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (RootClipLayer()) 2372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) vertical_adjust = layer_tree_host_impl_->VisibleViewportSize().height() - 2382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RootClipLayer()->bounds().height(); 2392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (ScrollbarLayerImpl* horiz = root_scroll->horizontal_scrollbar_layer()) { 2402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) horiz->set_vertical_adjust(vertical_adjust); 24190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) horiz->set_visible_to_total_length_ratio( 24290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) scrollable_viewport.width() / ScrollableSize().width()); 2432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (ScrollbarLayerImpl* vertical = root_scroll->vertical_scrollbar_layer()) { 2452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) vertical->set_vertical_adjust(vertical_adjust); 24690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) vertical->set_visible_to_total_length_ratio( 24790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) scrollable_viewport.height() / ScrollableSize().height()); 2482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 251c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void LayerTreeImpl::UpdateDrawProperties() { 252c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (IsActiveTree() && RootScrollLayer() && RootClipLayer()) 253c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) UpdateRootScrollLayerSizeDelta(); 2542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 255c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (settings().solid_color_scrollbars && 256c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) IsActiveTree() && 257c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) RootScrollLayer()) { 2582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) UpdateSolidColorScrollbars(); 2592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The top controls manager is incompatible with the WebKit-created cliprect 2612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // because it can bring into view a larger amount of content when it 2622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // hides. It's safe to deactivate the clip rect if no non-overlay scrollbars 2632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // are present. 2642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (RootClipLayer() && layer_tree_host_impl_->top_controls_manager()) 2652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RootClipLayer()->SetMasksToBounds(false); 2662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) needs_update_draw_properties_ = false; 2692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) render_surface_layer_list_.clear(); 2702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // For max_texture_size. 2722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!layer_tree_host_impl_->renderer()) 2732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 2742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!root_layer()) 2762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 2772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) { 2792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) TRACE_EVENT1("cc", 2802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) "LayerTreeImpl::UpdateDrawProperties", 2812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) "IsActive", 2822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) IsActiveTree()); 2832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LayerTreeHostCommon::CalculateDrawProperties( 2842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_layer(), 2852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) device_viewport_size(), 2862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) device_scale_factor(), 2872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) total_page_scale_factor(), 288c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_scroll_layer_, 2892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) MaxTextureSize(), 2902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings().can_use_lcd_text, 291b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) settings().layer_transforms_should_scale_layer_contents, 292c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) &render_surface_layer_list_); 2932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(!needs_update_draw_properties_) << 296c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) "CalcDrawProperties should not set_needs_update_draw_properties()"; 2972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)static void ClearRenderSurfacesOnLayerImplRecursive(LayerImpl* current) { 3002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(current); 3012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) for (size_t i = 0; i < current->children().size(); ++i) 3022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ClearRenderSurfacesOnLayerImplRecursive(current->children()[i]); 3032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) current->ClearRenderSurface(); 3042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::ClearRenderSurfaces() { 307a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) if (root_layer() == NULL) { 308a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) DCHECK(render_surface_layer_list_.empty()); 309a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) return; 310a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) } 3112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ClearRenderSurfacesOnLayerImplRecursive(root_layer()); 3122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) render_surface_layer_list_.clear(); 3132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) set_needs_update_draw_properties(); 3142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 316c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)const LayerImplList& LayerTreeImpl::RenderSurfaceLayerList() const { 3172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // If this assert triggers, then the list is dirty. 3182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(!needs_update_draw_properties_); 3192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return render_surface_layer_list_; 3202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)gfx::Size LayerTreeImpl::ScrollableSize() const { 3232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!root_scroll_layer_ || root_scroll_layer_->children().empty()) 3242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return gfx::Size(); 3252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return root_scroll_layer_->children()[0]->bounds(); 3262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)LayerImpl* LayerTreeImpl::LayerById(int id) { 3292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LayerIdMap::iterator iter = layer_id_map_.find(id); 3302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return iter != layer_id_map_.end() ? iter->second : NULL; 3312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::RegisterLayer(LayerImpl* layer) { 3342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(!LayerById(layer->id())); 3352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) layer_id_map_[layer->id()] = layer; 3362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::UnregisterLayer(LayerImpl* layer) { 3392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(LayerById(layer->id())); 3402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) layer_id_map_.erase(layer->id()); 3412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::PushPersistedState(LayerTreeImpl* pending_tree) { 3442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int id = currently_scrolling_layer_ ? currently_scrolling_layer_->id() : 0; 345a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) LayerImpl* pending_scrolling_layer_twin = NULL; 346a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) if (pending_tree->root_layer()) { 347a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) pending_scrolling_layer_twin = 348a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) LayerTreeHostCommon::FindLayerInSubtree(pending_tree->root_layer(), id); 349a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) } 350a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) pending_tree->SetCurrentlyScrollingLayer(pending_scrolling_layer_twin); 3512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)static void DidBecomeActiveRecursive(LayerImpl* layer) { 3542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) layer->DidBecomeActive(); 3552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) for (size_t i = 0; i < layer->children().size(); ++i) 3562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DidBecomeActiveRecursive(layer->children()[i]); 3572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::DidBecomeActive() { 3602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (root_layer()) 3612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DidBecomeActiveRecursive(root_layer()); 3622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) FindRootScrollLayer(); 3632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) UpdateMaxScrollOffset(); 3642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool LayerTreeImpl::ContentsTexturesPurged() const { 3672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return contents_textures_purged_; 3682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::SetContentsTexturesPurged() { 3712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) contents_textures_purged_ = true; 3722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) layer_tree_host_impl_->OnCanDrawStateChangedForTree(); 3732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::ResetContentsTexturesPurged() { 3762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) contents_textures_purged_ = false; 3772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) layer_tree_host_impl_->OnCanDrawStateChangedForTree(); 3782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool LayerTreeImpl::ViewportSizeInvalid() const { 3812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return viewport_size_invalid_; 3822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::SetViewportSizeInvalid() { 3852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) viewport_size_invalid_ = true; 3862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) layer_tree_host_impl_->OnCanDrawStateChangedForTree(); 3872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::ResetViewportSizeInvalid() { 3902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) viewport_size_invalid_ = false; 3912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) layer_tree_host_impl_->OnCanDrawStateChangedForTree(); 3922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)Proxy* LayerTreeImpl::proxy() const { 3952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->proxy(); 3962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const LayerTreeSettings& LayerTreeImpl::settings() const { 3992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->settings(); 4002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const RendererCapabilities& LayerTreeImpl::GetRendererCapabilities() const { 4032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->GetRendererCapabilities(); 4042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)OutputSurface* LayerTreeImpl::output_surface() const { 4072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->output_surface(); 4082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)ResourceProvider* LayerTreeImpl::resource_provider() const { 4112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->resource_provider(); 4122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)TileManager* LayerTreeImpl::tile_manager() const { 4152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->tile_manager(); 4162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)FrameRateCounter* LayerTreeImpl::frame_rate_counter() const { 4192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->fps_counter(); 4202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)PaintTimeCounter* LayerTreeImpl::paint_time_counter() const { 4232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->paint_time_counter(); 4242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)MemoryHistory* LayerTreeImpl::memory_history() const { 4272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->memory_history(); 4282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool LayerTreeImpl::IsActiveTree() const { 4312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->active_tree() == this; 4322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool LayerTreeImpl::IsPendingTree() const { 4352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->pending_tree() == this; 4362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool LayerTreeImpl::IsRecycleTree() const { 4392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->recycle_tree() == this; 4402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)LayerImpl* LayerTreeImpl::FindActiveTreeLayerById(int id) { 4432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LayerTreeImpl* tree = layer_tree_host_impl_->active_tree(); 4442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!tree) 4452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NULL; 4462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return tree->LayerById(id); 4472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)LayerImpl* LayerTreeImpl::FindPendingTreeLayerById(int id) { 4502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LayerTreeImpl* tree = layer_tree_host_impl_->pending_tree(); 4512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!tree) 4522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NULL; 4532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return tree->LayerById(id); 4542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)int LayerTreeImpl::MaxTextureSize() const { 4572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->GetRendererCapabilities().max_texture_size; 4582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool LayerTreeImpl::PinchGestureActive() const { 4612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->pinch_gesture_active(); 4622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 464c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)base::TimeTicks LayerTreeImpl::CurrentFrameTimeTicks() const { 465c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return layer_tree_host_impl_->CurrentFrameTimeTicks(); 466c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 467c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 468c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)base::Time LayerTreeImpl::CurrentFrameTime() const { 4692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->CurrentFrameTime(); 4702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::SetNeedsCommit() { 4732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) layer_tree_host_impl_->SetNeedsCommit(); 4742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void LayerTreeImpl::SetNeedsRedraw() { 477c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) layer_tree_host_impl_->SetNeedsRedraw(); 4782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const LayerTreeDebugState& LayerTreeImpl::debug_state() const { 4812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->debug_state(); 4822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)float LayerTreeImpl::device_scale_factor() const { 4852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->device_scale_factor(); 4862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)gfx::Size LayerTreeImpl::device_viewport_size() const { 4892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->device_viewport_size(); 4902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)std::string LayerTreeImpl::layer_tree_as_text() const { 4932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->LayerTreeAsText(); 4942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)DebugRectHistory* LayerTreeImpl::debug_rect_history() const { 4972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->debug_rect_history(); 4982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)AnimationRegistrar* LayerTreeImpl::animationRegistrar() const { 5012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return layer_tree_host_impl_->animation_registrar(); 5022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 5032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)scoped_ptr<base::Value> LayerTreeImpl::AsValue() const { 505b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue()); 506b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) TracedValue::MakeDictIntoImplicitSnapshot( 507b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) state.get(), "cc::LayerTreeImpl", this); 508b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) 509b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) state->Set("root_layer", root_layer_->AsValue().release()); 510b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) 511b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) scoped_ptr<base::ListValue> render_surface_layer_list(new base::ListValue()); 5122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) typedef LayerIterator<LayerImpl, 513c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) LayerImplList, 5142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RenderSurfaceImpl, 5152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LayerIteratorActions::BackToFront> LayerIteratorType; 5162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LayerIteratorType end = LayerIteratorType::End(&render_surface_layer_list_); 5172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) for (LayerIteratorType it = LayerIteratorType::Begin( 5182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) &render_surface_layer_list_); it != end; ++it) { 5192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!it.represents_itself()) 5202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) continue; 521b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) render_surface_layer_list->Append(TracedValue::CreateIDRef(*it).release()); 5222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 523b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) 524b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) state->Set("render_surface_layer_list", 525b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) render_surface_layer_list.release()); 5262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return state.PassAs<base::Value>(); 5272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 5282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 529c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void LayerTreeImpl::SetRootLayerScrollOffsetDelegate( 530c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) LayerScrollOffsetDelegate* root_layer_scroll_offset_delegate) { 531c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_layer_scroll_offset_delegate_ = root_layer_scroll_offset_delegate; 532c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (root_scroll_layer_) { 533c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_scroll_layer_->SetScrollOffsetDelegate( 534c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_layer_scroll_offset_delegate_); 535c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 536c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 537c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 538c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void LayerTreeImpl::UpdateRootScrollLayerSizeDelta() { 539c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) LayerImpl* root_scroll = RootScrollLayer(); 540c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) LayerImpl* root_clip = RootClipLayer(); 541c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(root_scroll); 542c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(root_clip); 543c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(IsActiveTree()); 544c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 545c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) gfx::Vector2dF scrollable_viewport_size = 546c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) gfx::RectF(ScrollableViewportSize()).bottom_right() - gfx::PointF(); 547c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 548c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) gfx::Vector2dF original_viewport_size = 549c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) gfx::RectF(root_clip->bounds()).bottom_right() - 550c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) gfx::PointF(); 551c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) original_viewport_size.Scale(1 / page_scale_factor()); 552c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 553c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) root_scroll->SetFixedContainerSizeDelta( 554c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) scrollable_viewport_size - original_viewport_size); 555c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 556c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 55790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)void LayerTreeImpl::SetLatencyInfo(const ui::LatencyInfo& latency_info) { 558c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) latency_info_.MergeWith(latency_info); 559c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 560c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 56190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)const ui::LatencyInfo& LayerTreeImpl::GetLatencyInfo() { 562c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return latency_info_; 563c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 564c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 565c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void LayerTreeImpl::ClearLatencyInfo() { 566c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) latency_info_.Clear(); 567c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 5682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 56990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)void LayerTreeImpl::WillModifyTilePriorities() { 57090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) layer_tree_host_impl_->tile_manager()->WillModifyTilePriorities(); 57190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)} 57290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 573c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} // namespace cc 574