Switch to standard integer types in components/, part 2 of 4.

components/html_viewer/html_frame_tree_manager.cc

 // Copyright 2015 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 "components/html_viewer/html_frame_tree_manager.h"
 
+#include <stddef.h>
+
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/logging.h"
+#include "base/macros.h"
 #include "components/html_viewer/blink_basic_type_converters.h"
 #include "components/html_viewer/blink_url_request_type_converters.h"
 #include "components/html_viewer/document_resource_waiter.h"
 #include "components/html_viewer/global_state.h"
 #include "components/html_viewer/html_factory.h"
 #include "components/html_viewer/html_frame.h"
 #include "components/html_viewer/html_frame_delegate.h"
 #include "components/html_viewer/html_frame_tree_manager_observer.h"
 #include "components/mus/public/cpp/window_tree_connection.h"
 #include "components/web_view/web_view_switches.h"
@@ skipping 379 matching lines @@
 
       for (const auto& child : node->children())
         nodes.push(child);
     }
   }
 
   return new_local_frame;
 }
 
 }  // namespace mojo