[DevTools] Move Page and Emulation handlers to RenderFrameHostImpl.

content/browser/devtools/render_frame_devtools_agent_host.h

Index: content/browser/devtools/render_frame_devtools_agent_host.h
diff --git a/content/browser/devtools/render_frame_devtools_agent_host.h b/content/browser/devtools/render_frame_devtools_agent_host.h
index 599962d3c2694b86e680c57001de217d53a95ec6..18082118e77d5ed390e831a3ad2702d324ccde65 100644
--- a/content/browser/devtools/render_frame_devtools_agent_host.h
+++ b/content/browser/devtools/render_frame_devtools_agent_host.h
@@ -12,8 +12,6 @@
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/devtools/ipc_devtools_agent_host.h"
 #include "content/common/content_export.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_observer.h"
 
 namespace cc {
@@ -45,8 +43,7 @@ namespace tracing { class TracingHandler; }
 
 class CONTENT_EXPORT RenderFrameDevToolsAgentHost
     : public IPCDevToolsAgentHost,
-      private WebContentsObserver,
-      public NotificationObserver {
+      private WebContentsObserver {
  public:
   static void AddAllAgentHosts(DevToolsAgentHost::List* result);
 
@@ -104,11 +101,6 @@ class CONTENT_EXPORT RenderFrameDevToolsAgentHost
       const GURL& url,
       ui::PageTransition transition_type) override;
 
-  // NotificationObserver overrides:
-  void Observe(int type,
-               const NotificationSource& source,
-               const NotificationDetails& details) override;
-
   void DisconnectRenderFrameHost();
   void ConnectRenderFrameHost(RenderFrameHost* rvh);
   void ReattachToRenderFrameHost(RenderFrameHost* rvh);
@@ -145,7 +137,6 @@ class CONTENT_EXPORT RenderFrameDevToolsAgentHost
 #if defined(OS_ANDROID)
   scoped_ptr<PowerSaveBlockerImpl> power_save_blocker_;
 #endif
-  NotificationRegistrar registrar_;
   bool reattaching_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameDevToolsAgentHost);