Remove WebContents::IsActiveEntry from Instant Extended and from WebContents.

content/public/browser/web_contents.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_PUBLIC_BROWSER_WEB_CONTENTS_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_
 
 #include <set>
 
 #include "base/basictypes.h"
@@ skipping 157 matching lines @@
   virtual const GURL& GetURL() const = 0;
 
   // Gets the URL currently being displayed in the URL bar, if there is one.
   // This URL might be a pending navigation that hasn't committed yet, so it is
   // not guaranteed to match the current page in this WebContents. A typical
   // example of this is interstitials, which show the URL of the new/loading
   // page (active) but the security context is of the old page (last committed).
   virtual const GURL& GetVisibleURL() const = 0;
 
   // Gets the last committed URL. It represents the current page that is
-  // displayed in  this WebContents. It represents the current security
+  // displayed in this WebContents. It represents the current security
   // context.
   virtual const GURL& GetLastCommittedURL() const = 0;
 
   // Return the currently active RenderProcessHost and RenderViewHost. Each of
   // these may change over time.
   virtual RenderProcessHost* GetRenderProcessHost() const = 0;
 
   // Returns the main frame for the currently active view.
   virtual RenderFrameHost* GetMainFrame() = 0;
 
@@ skipping 256 matching lines @@
   // Saves the given frame's URL to the local filesystem..
   virtual void SaveFrame(const GURL& url,
                          const Referrer& referrer) = 0;
 
   // Generate an MHTML representation of the current page in the given file.
   virtual void GenerateMHTML(
       const base::FilePath& file,
       const base::Callback<void(
           int64 /* size of the file */)>& callback) = 0;
 
-  // Returns true if the active NavigationEntry's page_id equals page_id.
-  virtual bool IsActiveEntry(int32 page_id) = 0;
-
   // Returns the contents MIME type after a navigation.
   virtual const std::string& GetContentsMimeType() const = 0;
 
   // Returns true if this WebContents will notify about disconnection.
   virtual bool WillNotifyDisconnection() const = 0;
 
   // Override the encoding and reload the page by sending down
   // ViewMsg_SetPageEncoding to the renderer. |UpdateEncoding| is kinda
   // the opposite of this, by which 'browser' is notified of
   // the encoding of the current tab from 'renderer' (determined by
@@ skipping 139 matching lines @@
 
  private:
   // This interface should only be implemented inside content.
   friend class WebContentsImpl;
   WebContents() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_