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