Change FrameTreeNode id from int64 to int.

content/browser/frame_host/frame_tree_node.cc

 // Copyright 2013 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/frame_host/frame_tree_node.h"
 
 #include <queue>
 
 #include "base/command_line.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/stl_util.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/navigation_request.h"
 #include "content/browser/frame_host/navigator.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/content_switches.h"
 
 namespace content {
 
 namespace {
 
 // This is a global map between frame_tree_node_ids and pointers to
 // FrameTreeNodes.
-typedef base::hash_map<int64, FrameTreeNode*> FrameTreeNodeIDMap;
+typedef base::hash_map<int, FrameTreeNode*> FrameTreeNodeIDMap;
 
 base::LazyInstance<FrameTreeNodeIDMap> g_frame_tree_node_id_map =
     LAZY_INSTANCE_INITIALIZER;
 
 // These values indicate the loading progress status. The minimum progress
 // value matches what Blink's ProgressTracker has traditionally used for a
 // minimum progress value.
 const double kLoadingProgressNotStarted = 0.0;
 const double kLoadingProgressMinimum = 0.1;
 const double kLoadingProgressDone = 1.0;
 
 }  // namespace
 
-int64 FrameTreeNode::next_frame_tree_node_id_ = 1;
+int FrameTreeNode::next_frame_tree_node_id_ = 1;
 
 // static
-FrameTreeNode* FrameTreeNode::GloballyFindByID(int64 frame_tree_node_id) {
+FrameTreeNode* FrameTreeNode::GloballyFindByID(int frame_tree_node_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   FrameTreeNodeIDMap* nodes = g_frame_tree_node_id_map.Pointer();
   FrameTreeNodeIDMap::iterator it = nodes->find(frame_tree_node_id);
   return it == nodes->end() ? nullptr : it->second;
 }
 
 FrameTreeNode::FrameTreeNode(FrameTree* frame_tree,
                              Navigator* navigator,
                              RenderFrameHostDelegate* render_frame_delegate,
                              RenderViewHostDelegate* render_view_delegate,
@@ skipping 208 matching lines @@
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "465796 FrameTreeNode::DidStopLoading::End"));
 }
 
 void FrameTreeNode::DidChangeLoadProgress(double load_progress) {
   loading_progress_ = load_progress;
   frame_tree_->UpdateLoadProgress();
 }
 
 }  // namespace content