Home | History | Annotate | Download | only in renderer 
      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_
     86