gpu_data_manager_observer.h revision 58e6fbe4ee35d65e14b626c557d37565bf8ad179 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_OBSERVER_H_
6#define CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_OBSERVER_H_
7
8#include "base/process/kill.h"
9#include "content/common/content_export.h"
10#include "content/public/common/gpu_memory_stats.h"
11#include "content/public/common/three_d_api_types.h"
12
13class GURL;
14
15namespace content {
16
17// Observers can register themselves via GpuDataManager::AddObserver, and
18// can un-register with GpuDataManager::RemoveObserver.
19class CONTENT_EXPORT GpuDataManagerObserver {
20 public:
21  // Called for any observers whenever there is a GPU info update.
22  virtual void OnGpuInfoUpdate() {}
23
24  // Called for any observers whenever there is a GPU video memory update.
25  virtual void OnVideoMemoryUsageStatsUpdate(
26      const GPUVideoMemoryUsageStats& video_memory_usage_stats) {}
27
28  // Indicates that client 3D APIs (Pepper 3D, WebGL) were just blocked on the
29  // given page, specifically because the GPU was reset recently.
30  virtual void DidBlock3DAPIs(const GURL& url,
31                              int render_process_id,
32                              int render_view_id,
33                              ThreeDAPIType requester) {}
34
35  // Called for any observer when the GPU process crashed.
36  virtual void OnGpuProcessCrashed(base::TerminationStatus exit_code) {}
37
38  // Called for any observer when the system switches to a different GPU.
39  virtual void OnGpuSwitching() {}
40
41 protected:
42  virtual ~GpuDataManagerObserver() {}
43};
44
45};  // namespace content
46
47#endif  // CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_OBSERVER_H_
48