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

components/html_viewer/web_layer_tree_view_impl.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 "components/html_viewer/web_layer_tree_view_impl.h"
 
+#include <stddef.h>
+
 #include "base/thread_task_runner_handle.h"
 #include "cc/blink/web_layer_impl.h"
 #include "cc/layers/layer.h"
 #include "cc/output/begin_frame_args.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/trees/layer_tree_host.h"
 #include "components/mus/public/cpp/context_provider.h"
 #include "components/mus/public/cpp/output_surface.h"
 #include "components/mus/public/cpp/window.h"
 #include "mojo/converters/surfaces/surfaces_type_converters.h"
@@ skipping 217 matching lines @@
       use_anchor,
       new_page_scale,
       duration);
 }
 
 void WebLayerTreeViewImpl::setNeedsAnimate() {
   layer_tree_host_->SetNeedsAnimate();
 }
 
 }  // namespace html_viewer