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 "base/metrics/field_trial.h"
  14 #include "components/content_settings/core/common/content_settings.h"
  15 #include "content/public/renderer/render_process_observer.h"
  16
  17 class ChromeContentRendererClient;
  18 class GURL;
  19 struct ContentSettings;
  20
  21 namespace content {
  22 class ResourceDispatcherDelegate;
  23 }
  24
  25 // This class filters the incoming control messages (i.e. ones not destined for
  26 // a RenderView) for Chrome specific messages that the content layer doesn't
  27 // happen.  If a few messages are related, they should probably have their own
  28 // observer.
  29 class ChromeRenderProcessObserver : public content::RenderProcessObserver,
  30                                     public base::FieldTrialList::Observer {
  31  public:
  32   explicit ChromeRenderProcessObserver(
  33       ChromeContentRendererClient* client);
  34   ~ChromeRenderProcessObserver() override;
  35
  36   static bool is_incognito_process() { return is_incognito_process_; }
  37
  38   // Returns a pointer to the content setting rules owned by
  39   // |ChromeRenderProcessObserver|.
  40   const RendererContentSettingRules* content_setting_rules() const;
  41
  42  private:
  43   // RenderProcessObserver implementation.
  44   bool OnControlMessageReceived(const IPC::Message& message) override;
  45   void WebKitInitialized() override;
  46   void OnRenderProcessShutdown() override;
  47
  48   // Observer implementation.
  49   void OnFieldTrialGroupFinalized(const std::string& trial_name,
  50                                   const std::string& group_name) 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 OnGetCacheResourceStats();
  57   void OnSetFieldTrialGroup(const std::string& fiel_trial_name,
  58                             const std::string& group_name);
  59   void OnGetV8HeapStats();
  60
  61   static bool is_incognito_process_;
  62   scoped_ptr<content::ResourceDispatcherDelegate> resource_delegate_;
  63   ChromeContentRendererClient* client_;
  64   // If true, the web cache shall be cleared before the next navigation event.
  65   bool clear_cache_pending_;
  66   RendererContentSettingRules content_setting_rules_;
  67
  68   bool webkit_initialized_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(ChromeRenderProcessObserver);
  71 };
  72
  73 #endif  // CHROME_RENDERER_CHROME_RENDER_PROCESS_OBSERVER_H_