Remove redundant boolean from unit test code.

chrome/browser/prerender/prerender_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 CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_
 #pragma once
 
 #include <list>
 #include <string>
@@ skipping 225 matching lines @@
     return &pending_prerender_list_;
   }
 
   bool prerendering_has_been_cancelled() const {
     return prerendering_has_been_cancelled_;
   }
 
   virtual content::WebContents* CreateWebContents(
       content::SessionStorageNamespace* session_storage_namespace);
 
+  bool prerendering_has_started_;
+
  private:
   class TabContentsDelegateImpl;
 
   // Needs to be able to call the constructor.
   friend class PrerenderContentsFactoryImpl;
 
   friend class PrerenderRenderViewHostObserver;
 
   // Message handlers.
   void OnUpdateFaviconURL(int32 page_id, const std::vector<FaviconURL>& urls);
@@ skipping 37 matching lines @@
 
   bool has_stopped_loading_;
 
   // True when the main frame has finished loading.
   bool has_finished_loading_;
 
   // This must be the same value as the PrerenderTracker has recorded for
   // |this|, when |this| has a RenderView.
   FinalStatus final_status_;
 
-  bool prerendering_has_started_;
-
   // The MatchComplete status of the prerender, indicating how it relates
   // to being a MatchComplete dummy (see definition of MatchCompleteStatus
   // above).
   MatchCompleteStatus match_complete_status_;
 
   // Tracks whether or not prerendering has been cancelled by calling Destroy.
   // Used solely to prevent double deletion.
   bool prerendering_has_been_cancelled_;
 
   // Time at which we started to load the URL.  This is used to compute
@@ skipping 30 matching lines @@
 
   // The size of the WebView from the launching page.
   gfx::Size size_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderContents);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_