Hide location bar on Javascript-initiated 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 <algorithm>
 #include <stack>
 
 #include "base/bind.h"
@@ skipping 1031 matching lines @@
 }
 
 void LayerTreeHost::SetDeviceScaleFactor(float device_scale_factor) {
   if (device_scale_factor ==  device_scale_factor_)
     return;
   device_scale_factor_ = device_scale_factor;
 
   SetNeedsCommit();
 }
 
-void LayerTreeHost::UpdateTopControlsState(bool enable_hiding,
-                                           bool enable_showing,
+void LayerTreeHost::UpdateTopControlsState(TopControlsState constraints,
+                                           TopControlsState current,
                                            bool animate) {
   if (!settings_.calculate_top_controls_position)
     return;
 
   // Top controls are only used in threaded mode.
   proxy_->ImplThread()->PostTask(
       base::Bind(&TopControlsManager::UpdateTopControlsState,
                  top_controls_manager_weak_ptr_,
-                 enable_hiding,
-                 enable_showing,
+                 constraints,
+                 current,
                  animate));
 }
 
 bool LayerTreeHost::BlocksPendingCommit() const {
   if (!root_layer_)
     return false;
   return root_layer_->BlocksPendingCommitRecursive();
 }
 
 scoped_ptr<base::Value> LayerTreeHost::AsValue() const {
@@ skipping 21 matching lines @@
     bool start_ready_animations = true;
     (*iter).second->UpdateState(start_ready_animations, NULL);
   }
 }
 
 skia::RefPtr<SkPicture> LayerTreeHost::CapturePicture() {
   return proxy_->CapturePicture();
 }
 
 }  // namespace cc