Hide location bar on WebKit programmatic scroll.

cc/trees/layer_tree_host.cc

 // Copyright 2011 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 "cc/trees/layer_tree_host.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/message_loop.h"
@@ skipping 953 matching lines @@
 
 void LayerTreeHost::EnableHidingTopControls(bool enable) {
   if (!settings_.calculate_top_controls_position)
     return;
 
   proxy_->ImplThread()->PostTask(
       base::Bind(&TopControlsManager::EnableHidingTopControls,
                  top_controls_manager_weak_ptr_, enable));
 }
 
+void LayerTreeHost::ShowTopControls(bool show)
+{

[John Knottenbelt, 2013/03/25 15:29:48]

To previous line.

+  proxy_->ImplThread()->PostTask(

[John Knottenbelt, 2013/03/25 15:29:48]

Add  if (!settings_.calculate_top_controls_position)
  967     return;	  967     return;

+      base::Bind(&TopControlsManager::ShowTopControls,
+                 top_controls_manager_weak_ptr_, show));
+}
+
 bool LayerTreeHost::BlocksPendingCommit() const {
   if (!root_layer_)
     return false;
   return root_layer_->BlocksPendingCommitRecursive();
 }
 
 scoped_ptr<base::Value> LayerTreeHost::AsValue() const {
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
   state->Set("proxy", proxy_->AsValue().release());
   return state.PassAs<base::Value>();
@@ skipping 53 matching lines @@
     SetAnimationEventsRecursive(events,
                                 layer->children()[child_index].get(),
                                 wall_clock_time);
 }
 
 skia::RefPtr<SkPicture> LayerTreeHost::CapturePicture() {
   return proxy_->CapturePicture();
 }
 
 }  // namespace cc