Track all extension frames in ProcessManager, inspect extensionoptions

extensions/browser/extension_web_contents_observer.h

 // Copyright 2014 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 EXTENSIONS_BROWSER_EXTENSION_WEB_CONTENTS_OBSERVER_H_
 #define EXTENSIONS_BROWSER_EXTENSION_WEB_CONTENTS_OBSERVER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 42 matching lines @@
   // ExtensionFunctionDispatcher::Delegate overrides.
   content::WebContents* GetAssociatedWebContents() const override;
 
   // content::WebContentsObserver overrides.
 
   // A subclass should invoke this method to finish extension process setup.
   void RenderViewCreated(content::RenderViewHost* render_view_host) override;
 
   void RenderFrameCreated(content::RenderFrameHost* render_frame_host) override;
   void RenderFrameDeleted(content::RenderFrameHost* render_frame_host) override;
+  void RenderFrameHostChanged(content::RenderFrameHost* old_host,
+                              content::RenderFrameHost* new_host) override;
 
   // Subclasses should call this first before doing their own message handling.
   bool OnMessageReceived(const IPC::Message& message,
                          content::RenderFrameHost* render_frame_host) override;
 
   // Per the documentation in WebContentsObserver, these two methods are invoked
   // when a Pepper plugin instance is attached/detached in the page DOM.
   void PepperInstanceCreated() override;
   void PepperInstanceDeleted() override;
 
@@ skipping 28 matching lines @@
   content::BrowserContext* browser_context_;
 
   ExtensionFunctionDispatcher dispatcher_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionWebContentsObserver);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_WEB_CONTENTS_OBSERVER_H_