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 CHROME_RENDERER_CHROME_RENDER_PROCESS_OBSERVER_H_
6#define CHROME_RENDERER_CHROME_RENDER_PROCESS_OBSERVER_H_
7
8#include <string>
9
10#include "base/compiler_specific.h"
11#include "base/files/file_path.h"
12#include "base/memory/scoped_ptr.h"
13#include "chrome/common/content_settings.h"
14#include "content/public/renderer/render_process_observer.h"
15
16class ChromeContentRendererClient;
17class GURL;
18struct ContentSettings;
19
20namespace content {
21class ResourceDispatcherDelegate;
22}
23
24// This class filters the incoming control messages (i.e. ones not destined for
25// a RenderView) for Chrome specific messages that the content layer doesn't
26// happen.  If a few messages are related, they should probably have their own
27// observer.
28class ChromeRenderProcessObserver : public content::RenderProcessObserver {
29 public:
30  explicit ChromeRenderProcessObserver(
31      ChromeContentRendererClient* client);
32  virtual ~ChromeRenderProcessObserver();
33
34  static bool is_incognito_process() { return is_incognito_process_; }
35
36  // Needs to be called by RenderViews in case of navigations to execute
37  // any 'clear cache' commands that were delayed until the next navigation.
38  void ExecutePendingClearCache();
39
40  // Returns a pointer to the content setting rules owned by
41  // |ChromeRenderProcessObserver|.
42  const RendererContentSettingRules* content_setting_rules() const;
43
44 private:
45  // RenderProcessObserver implementation.
46  virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
47  virtual void WebKitInitialized() OVERRIDE;
48  virtual void OnRenderProcessShutdown() OVERRIDE;
49
50  void OnSetIsIncognitoProcess(bool is_incognito_process);
51  void OnSetContentSettingsForCurrentURL(
52      const GURL& url, const ContentSettings& content_settings);
53  void OnSetContentSettingRules(const RendererContentSettingRules& rules);
54  void OnSetCacheCapacities(size_t min_dead_capacity,
55                            size_t max_dead_capacity,
56                            size_t capacity);
57  // If |on_navigation| is true, the clearing is delayed until the next
58  // navigation event.
59  void OnClearCache(bool on_navigation);
60  void OnGetCacheResourceStats();
61  void OnSetFieldTrialGroup(const std::string& fiel_trial_name,
62                            const std::string& group_name);
63  void OnGetV8HeapStats();
64  void OnPurgeMemory();
65  void OnToggleWebKitSharedTimer(bool suspend);
66
67  static bool is_incognito_process_;
68  scoped_ptr<content::ResourceDispatcherDelegate> resource_delegate_;
69  ChromeContentRendererClient* client_;
70  // If true, the web cache shall be cleared before the next navigation event.
71  bool clear_cache_pending_;
72  RendererContentSettingRules content_setting_rules_;
73
74  bool webkit_initialized_;
75  size_t pending_cache_min_dead_capacity_;
76  size_t pending_cache_max_dead_capacity_;
77  size_t pending_cache_capacity_;
78
79  DISALLOW_COPY_AND_ASSIGN(ChromeRenderProcessObserver);
80};
81
82#endif  // CHROME_RENDERER_CHROME_RENDER_PROCESS_OBSERVER_H_
83