Add UMA histogram DomDistiller.Time.RunJavaScript

components/dom_distiller/content/distiller_page_web_contents.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 COMPONENTS_DOM_DISTILLER_CONTENT_DISTILLER_PAGE_WEB_CONTENTS_H_
 #define COMPONENTS_DOM_DISTILLER_CONTENT_DISTILLER_PAGE_WEB_CONTENTS_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 82 matching lines @@
   // Creates a new WebContents, adds |this| as an observer, and loads the
   // |url|.
   virtual void CreateNewWebContents(const GURL& url);
 
   // Injects and executes JavaScript in the context of a loaded page. This
   // must only be called after the page has successfully loaded.
   void ExecuteJavaScript();
 
   // Called when the distillation is done or if the page load failed.
   void OnWebContentsDistillationDone(const GURL& page_url,
+                                     const base::TimeTicks& javascript_start,
                                      const base::Value* value);
 
   // The current state of the |DistillerPage|, initially |IDLE|.
   State state_;
 
   // The JavaScript to inject to extract content.
   std::string script_;
 
   scoped_ptr<SourcePageHandleWebContents> source_page_handle_;
 
   content::BrowserContext* browser_context_;
   gfx::Size render_view_size_;
   DISALLOW_COPY_AND_ASSIGN(DistillerPageWebContents);
 };
 
 }  // namespace dom_distiller
 
 #endif  // COMPONENTS_DOM_DISTILLER_CONTENT_DISTILLER_PAGE_WEB_CONTENTS_H_