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 GURL;
  17 struct ContentSettings;
  18
  19 namespace chrome {
  20 class ChromeContentRendererClient;
  21 }
  22
  23 namespace content {
  24 class ResourceDispatcherDelegate;
  25 }
  26
  27 // This class filters the incoming control messages (i.e. ones not destined for
  28 // a RenderView) for Chrome specific messages that the content layer doesn't
  29 // happen.  If a few messages are related, they should probably have their own
  30 // observer.
  31 class ChromeRenderProcessObserver : public content::RenderProcessObserver {
  32  public:
  33   explicit ChromeRenderProcessObserver(
  34       chrome::ChromeContentRendererClient* client);
  35   virtual ~ChromeRenderProcessObserver();
  36
  37   static bool is_incognito_process() { return is_incognito_process_; }
  38
  39   static bool extension_activity_log_enabled() {
  40     return extension_activity_log_enabled_;
  41   }
  42
  43   // Needs to be called by RenderViews in case of navigations to execute
  44   // any 'clear cache' commands that were delayed until the next navigation.
  45   void ExecutePendingClearCache();
  46
  47   // Returns a pointer to the content setting rules owned by
  48   // |ChromeRenderProcessObserver|.
  49   const RendererContentSettingRules* content_setting_rules() const;
  50
  51  private:
  52   // RenderProcessObserver implementation.
  53   virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
  54   virtual void WebKitInitialized() OVERRIDE;
  55
  56   void OnSetIsIncognitoProcess(bool is_incognito_process);
  57   void OnSetExtensionActivityLogEnabled(bool extension_activity_log_enabled);
  58   void OnSetContentSettingsForCurrentURL(
  59       const GURL& url, const ContentSettings& content_settings);
  60   void OnSetContentSettingRules(const RendererContentSettingRules& rules);
  61   void OnSetCacheCapacities(size_t min_dead_capacity,
  62                             size_t max_dead_capacity,
  63                             size_t capacity);
  64   // If |on_navigation| is true, the clearing is delayed until the next
  65   // navigation event.
  66   void OnClearCache(bool on_navigation);
  67   void OnGetCacheResourceStats();
  68   void OnSetFieldTrialGroup(const std::string& fiel_trial_name,
  69                             const std::string& group_name);
  70   void OnGetV8HeapStats();
  71   void OnPurgeMemory();
  72   void OnToggleWebKitSharedTimer(bool suspend);
  73
  74   static bool is_incognito_process_;
  75   static bool extension_activity_log_enabled_;
  76   scoped_ptr<content::ResourceDispatcherDelegate> resource_delegate_;
  77   chrome::ChromeContentRendererClient* client_;
  78   // If true, the web cache shall be cleared before the next navigation event.
  79   bool clear_cache_pending_;
  80   RendererContentSettingRules content_setting_rules_;
  81
  82   DISALLOW_COPY_AND_ASSIGN(ChromeRenderProcessObserver);
  83 };
  84
  85 #endif  // CHROME_RENDERER_CHROME_RENDER_PROCESS_OBSERVER_H_