[DevTools] Implement DevToolsManager::Observer which notifies about target updates.

content/browser/devtools/render_view_devtools_agent_host.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_DEVTOOLS_RENDER_VIEW_DEVTOOLS_AGENT_HOST_H_
 #define CONTENT_BROWSER_DEVTOOLS_RENDER_VIEW_DEVTOOLS_AGENT_HOST_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 61 matching lines @@
   virtual void AboutToNavigateRenderView(RenderViewHost* dest_rvh) OVERRIDE;
   virtual void RenderViewHostChanged(RenderViewHost* old_host,
                                      RenderViewHost* new_host) OVERRIDE;
   virtual void RenderViewDeleted(RenderViewHost* rvh) OVERRIDE;
   virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  RenderFrameHost* render_frame_host) OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void DidAttachInterstitialPage() OVERRIDE;
   virtual void DidDetachInterstitialPage() OVERRIDE;
+  virtual void TitleWasSet(NavigationEntry* entry, bool explicit_set) OVERRIDE;
+  virtual void NavigationEntryCommitted(
+      const LoadCommittedDetails& load_details) OVERRIDE;
 
   // NotificationObserver overrides:
   virtual void Observe(int type,
                        const NotificationSource& source,
                        const NotificationDetails& details) OVERRIDE;
 
   void DisconnectRenderViewHost();
   void ConnectRenderViewHost(RenderViewHost* rvh);
   void ReattachToRenderViewHost(RenderViewHost* rvh);
 
@@ skipping 27 matching lines @@
   std::string state_;
   NotificationRegistrar registrar_;
   bool reattaching_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewDevToolsAgentHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_RENDER_VIEW_DEVTOOLS_AGENT_HOST_H_