Change FrameTreeNode id from int64 to int.

content/browser/loader/navigation_url_loader_impl_core.cc

 // Copyright 2014 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 "content/browser/loader/navigation_url_loader_impl_core.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/time/time.h"
 #include "content/browser/frame_host/navigation_request_info.h"
@@ skipping 19 matching lines @@
 
 NavigationURLLoaderImplCore::~NavigationURLLoaderImplCore() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   if (resource_handler_)
     resource_handler_->Cancel();
 }
 
 void NavigationURLLoaderImplCore::Start(
     ResourceContext* resource_context,
-    int64 frame_tree_node_id,
+    int frame_tree_node_id,
     scoped_ptr<NavigationRequestInfo> request_info) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&NavigationURLLoaderImpl::NotifyRequestStarted, loader_,
                  base::TimeTicks::Now()));
 
   ResourceDispatcherHostImpl::Get()->BeginNavigationRequest(
       resource_context, frame_tree_node_id,
@@ skipping 48 matching lines @@
                                                       int net_error) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&NavigationURLLoaderImpl::NotifyRequestFailed, loader_,
                  in_cache, net_error));
 }
 
 }  // namespace content