Remove a chrome dependency by removing Prerender from ResourceDispatcherHost.

chrome/browser/prerender/prerender_contents.h

 // Copyright (c) 2011 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 <string>
 #include <vector>
@@ skipping 22 matching lines @@
 class ProcessMetrics;
 }
 
 namespace gfx {
 class Rect;
 }
 
 namespace prerender {
 
 class PrerenderManager;
+class PrerenderTracker;
 
 // This class is a peer of TabContents. It can host a renderer, but does not
 // have any visible display. Its navigation is not managed by a
 // NavigationController because is has no facility for navigating (other than
 // programatically view window.location.href) or RenderViewHostManager because
 // it is never allowed to navigate across a SiteInstance boundary.
 // TODO(dominich): Remove RenderViewHostDelegate inheritance when UseTabContents
 // returns true by default.
 class PrerenderContents : public RenderViewHostDelegate,
                           public RenderViewHostDelegate::View,
                           public NotificationObserver,
                           public TabContentsObserver,
                           public JavaScriptAppModalDialogDelegate,
                           public DownloadTabHelperDelegate {
  public:
   // PrerenderContents::Create uses the currently registered Factory to create
   // the PrerenderContents. Factory is intended for testing.
   class Factory {
    public:
     Factory() {}
     virtual ~Factory() {}
 
+    // Ownership is not transfered through this interface as prerender_manager,
+    // prerender_tracker, and profile are stored as weak pointers.
     virtual PrerenderContents* CreatePrerenderContents(
         PrerenderManager* prerender_manager,
+        PrerenderTracker* prerender_tracker,
         Profile* profile,
         const GURL& url,
         const GURL& referrer) = 0;
 
    private:
     DISALLOW_COPY_AND_ASSIGN(Factory);
   };
 
   virtual ~PrerenderContents();
 
@@ skipping 174 matching lines @@
   }
 
   // Applies all the URL history encountered during prerendering to the
   // new tab.
   void CommitHistory(TabContents* tc);
 
   int32 starting_page_id() { return starting_page_id_; }
 
  protected:
   PrerenderContents(PrerenderManager* prerender_manager,
+                    PrerenderTracker* prerender_tracker,
                     Profile* profile,
                     const GURL& url,
                     const GURL& referrer);
 
   const GURL& prerender_url() const { return prerender_url_; }
 
   NotificationRegistrar& notification_registrar() {
     return notification_registrar_;
   }
 
@@ skipping 18 matching lines @@
 
   // Returns the RenderViewHost Delegate for this prerender.
   RenderViewHostDelegate* GetRenderViewHostDelegate();
 
   // Returns the ProcessMetrics for the render process, if it exists.
   base::ProcessMetrics* MaybeGetProcessMetrics();
 
   // The prerender manager owning this object.
   PrerenderManager* prerender_manager_;
 
+  // The prerender tracker tracking prerenders.
+  PrerenderTracker* prerender_tracker_;
+
   // The host for our HTML content.
   RenderViewHost* render_view_host_;
 
   // Common implementations of some RenderViewHostDelegate::View methods.
   RenderViewHostDelegateViewHelper delegate_view_helper_;
 
   // The URL being prerendered.
   GURL prerender_url_;
 
   // The referrer.
@@ skipping 59 matching lines @@
 
   // Offset by which to offset prerendered pages
   static const int32 kPrerenderPageIdOffset = 10;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderContents);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_