Fix race condition where chrome.tabs.executeScript sometimes wouldn't

chrome/renderer/user_script_idle_scheduler.h

 // Copyright (c) 2009 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_RENDERER_USER_SCRIPT_IDLE_SCHEDULER_H_
 #define CHROME_RENDERER_USER_SCRIPT_IDLE_SCHEDULER_H_
 #pragma once
 
 #include "base/task.h"
 
@@ skipping 13 matching lines @@
 // The intent of this mechanism is to prevent user scripts from slowing down
 // fast pages (run after load), while still allowing them to run relatively
 // timely for pages with lots of slow subresources.
 class UserScriptIdleScheduler {
  public:
   UserScriptIdleScheduler(RenderView* view, WebKit::WebFrame* frame);
   ~UserScriptIdleScheduler();
 
   bool has_run() { return has_run_; }
 
-  void set_has_run(bool has_run) { has_run_ = has_run; }
-
   // Called when the DOM has been completely constructed.
   void DidFinishDocumentLoad();
 
   // Called when the document has completed loading.
   void DidFinishLoad();
 
   // Called when the client has gone away and we should no longer run scripts.
   void Cancel();
 
  private:
   // Run user scripts, except if they've already run for this frame, or the
   // frame has been destroyed.
   void MaybeRun();
 
   ScopedRunnableMethodFactory<UserScriptIdleScheduler> method_factory_;
 
   // The RenderView we will call back to when it is time to run scripts.
   RenderView* view_;
 
   // The Frame we will run scripts in.
   WebKit::WebFrame* frame_;
 
   // Whether we have already run scripts.
   bool has_run_;
 };
 
 #endif  // CHROME_RENDERER_USER_SCRIPT_IDLE_SCHEDULER_H_