Change FrameTreeNode id from int64 to int.

content/browser/loader/navigation_url_loader_impl_core.h

 // 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.
 
 #ifndef CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_IMPL_CORE_H_
 #define CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_IMPL_CORE_H_
 
 #include "base/basictypes.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 22 matching lines @@
 class NavigationURLLoaderImplCore {
  public:
   // Creates a new NavigationURLLoaderImplCore that forwards signals back to
   // |loader| on the UI thread.
   explicit NavigationURLLoaderImplCore(
       const base::WeakPtr<NavigationURLLoaderImpl>& loader);
   ~NavigationURLLoaderImplCore();
 
   // Starts the request.
   void Start(ResourceContext* resource_context,
-             int64 frame_tree_node_id,
+             int frame_tree_node_id,
              scoped_ptr<NavigationRequestInfo> request_info);
 
   // Follows the current pending redirect.
   void FollowRedirect();
 
   void set_resource_handler(NavigationResourceHandler* resource_handler) {
     resource_handler_ = resource_handler;
   }
 
   // Notifies |loader_| on the UI thread that the request was redirected.
@@ skipping 10 matching lines @@
  private:
   base::WeakPtr<NavigationURLLoaderImpl> loader_;
   NavigationResourceHandler* resource_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationURLLoaderImplCore);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_IMPL_CORE_H_