Add instrumentation to see how often a local predictor prerender could be

chrome/browser/prerender/prerender_handle.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/prerender/prerender_handle.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "chrome/browser/prerender/prerender_contents.h"
@@ skipping 34 matching lines @@
   return prerender_data_ != NULL;
 }
 
 bool PrerenderHandle::IsFinishedLoading() const {
   DCHECK(CalledOnValidThread());
   if (!prerender_data_)
     return false;
   return prerender_data_->contents()->has_finished_loading();
 }
 
+bool PrerenderHandle::Matches(
+    const GURL& url,
+    const content::SessionStorageNamespace* session_storage_namespace) const {
+  DCHECK(CalledOnValidThread());
+  if (!prerender_data_)
+    return false;
+  return prerender_data_->contents()->Matches(url, session_storage_namespace);
+}
+
 PrerenderHandle::PrerenderHandle(
     PrerenderManager::PrerenderData* prerender_data)
     : observer_(NULL),
       weak_ptr_factory_(this) {
   if (prerender_data) {
     prerender_data_ = prerender_data->AsWeakPtr();
     prerender_data->OnHandleCreated(this);
   }
 }
 
@@ skipping 58 matching lines @@
   // so we expect to not have our new contents in our PrerenderData yet. The
   // switch occurs in
   // PrerenderManager::PrerenderData::MakeIntoMatchCompleteReplacement, so
   // this method only needs to switch observing.
 
   contents->RemoveObserver(this);
   replacement->AddObserver(this);
 }
 
 }  // namespace prerender