Cleanup: Remove unused variables in chrome/ found by Scythe.

chrome/browser/ui/search/instant_page.h

 // Copyright 2013 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 CHROME_BROWSER_UI_SEARCH_INSTANT_PAGE_H_
 #define CHROME_BROWSER_UI_SEARCH_INSTANT_PAGE_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 53 matching lines @@
   // out false, and is set to true whenever we get any message from the page.
   // Once true, it never becomes false (the page isn't expected to drop API
   // support suddenly).
   virtual bool supports_instant() const;
 
   // Returns true if the page is the local NTP (i.e. its URL is
   // chrome::kChromeSearchLocalNTPURL).
   virtual bool IsLocal() const;
 
  protected:
-  InstantPage(Delegate* delegate, const std::string& instant_url,
-              Profile* profile, bool is_incognito);
+  InstantPage(Delegate* delegate,
+              const std::string& instant_url,
+              Profile* profile);
 
   // Sets |web_contents| as the page to communicate with. |web_contents| may be
   // NULL, which effectively stops all communication.
   void SetContents(content::WebContents* web_contents);
 
   Delegate* delegate() const { return delegate_; }
 
   Profile* profile() const { return profile_; }
 
   // These functions are called before processing messages received from the
@@ skipping 26 matching lines @@
   void InstantSupportDetermined(bool supports_instant);
 
   void ClearContents();
 
   // TODO(kmadhusu): Remove |profile_| from here and update InstantNTP to get
   // |profile| from InstantNTPPrerenderer.
   Profile* profile_;
 
   Delegate* const delegate_;
   const std::string instant_url_;
-  const bool is_incognito_;
 
   DISALLOW_COPY_AND_ASSIGN(InstantPage);
 };
 
 #endif  // CHROME_BROWSER_UI_SEARCH_INSTANT_PAGE_H_