Remove a chrome dependency by removing Prerender from ResourceDispatcherHost.

chrome/browser/prerender/prerender_manager.h

Index: chrome/browser/prerender/prerender_manager.h
diff --git a/chrome/browser/prerender/prerender_manager.h b/chrome/browser/prerender/prerender_manager.h
index 0471414f7e37304dfac732afea83dfa59b9c18fb..f2b7c1215df807fd9168f2c38eff03e1d3c69c11 100644
--- a/chrome/browser/prerender/prerender_manager.h
+++ b/chrome/browser/prerender/prerender_manager.h
@@ -38,6 +38,8 @@ struct hash<TabContents*> {
 
 namespace prerender {
 
+class PrerenderTracker;
+
 // Adds either a preload or a pending preload to the PrerenderManager.
 // Must be called on the UI thread.
 void HandlePrefetchTag(
@@ -48,6 +50,12 @@ void HandlePrefetchTag(
     const GURL& referrer,
     bool make_pending);
 
+void DestroyPreloadForRenderView(
+    const base::WeakPtr<PrerenderManager>& prerender_manager_weak_ptr,
+    int child_id,
+    int route_id,
+    FinalStatus final_status);
+
 // PrerenderManager is responsible for initiating and keeping prerendered
 // views of webpages. All methods must be called on the UI thread unless
 // indicated otherwise.
@@ -65,7 +73,7 @@ class PrerenderManager : public base::SupportsWeakPtr<PrerenderManager>,
   };
 
   // Owned by a Profile object for the lifetime of the profile.
-  explicit PrerenderManager(Profile* profile);
+  PrerenderManager(Profile* profile, PrerenderTracker* prerender_tracker);
 
   virtual ~PrerenderManager();
 
@@ -268,6 +276,8 @@ class PrerenderManager : public base::SupportsWeakPtr<PrerenderManager>,
 
   Profile* profile_;
 
+  PrerenderTracker* prerender_tracker_;
+
   base::TimeDelta max_prerender_age_;
   // Maximum amount of memory, in megabytes, that a single PrerenderContents
   // can use before it's cancelled.