Make PrerenderTracker's resource_throttle_io_thread_map_ use RenderFrame IDs instead of RenderView …

chrome/browser/prerender/prerender_resource_throttle.cc

Index: chrome/browser/prerender/prerender_resource_throttle.cc
===================================================================
--- chrome/browser/prerender/prerender_resource_throttle.cc	(revision 245386)
+++ chrome/browser/prerender/prerender_resource_throttle.cc	(working copy)
@@ -39,14 +39,6 @@
 void PrerenderResourceThrottle::WillStartRequest(bool* defer) {
   const content::ResourceRequestInfo* info =
       content::ResourceRequestInfo::ForRequest(request_);
-  int child_id = info->GetChildID();
-  int route_id = info->GetRouteID();
-
-  // If the prerender was used since the throttle was added, leave it
-  // alone.
-  if (!tracker_->IsPrerenderingOnIOThread(child_id, route_id))
-    return;
-
   *defer = true;
   content::BrowserThread::PostTask(
       content::BrowserThread::UI,
@@ -60,14 +52,6 @@
                                                     bool* defer) {
   const content::ResourceRequestInfo* info =
       content::ResourceRequestInfo::ForRequest(request_);
-  int child_id = info->GetChildID();
-  int route_id = info->GetRouteID();
-
-  // If the prerender was used since the throttle was added, leave it
-  // alone.
-  if (!tracker_->IsPrerenderingOnIOThread(child_id, route_id))
-    return;
-
   *defer = true;
   std::string header;
   request_->GetResponseHeaderByName(kFollowOnlyWhenPrerenderShown, &header);