chrome/renderer/chrome_render_process_observer.h

   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
  16 class ChromeContentRendererClient;
  17 class GURL;
  18 struct ContentSettings;
  19
  20 namespace content {
  21 class 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.
  28 class 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
  66   static bool is_incognito_process_;
  67   scoped_ptr<content::ResourceDispatcherDelegate> resource_delegate_;
  68   ChromeContentRendererClient* client_;
  69   // If true, the web cache shall be cleared before the next navigation event.
  70   bool clear_cache_pending_;
  71   RendererContentSettingRules content_setting_rules_;
  72
  73   bool webkit_initialized_;
  74   size_t pending_cache_min_dead_capacity_;
  75   size_t pending_cache_max_dead_capacity_;
  76   size_t pending_cache_capacity_;
  77
  78   DISALLOW_COPY_AND_ASSIGN(ChromeRenderProcessObserver);
  79 };
  80
  81 #endif  // CHROME_RENDERER_CHROME_RENDER_PROCESS_OBSERVER_H_