Hide location bar on Javascript-initiated scroll.

cc/trees/layer_tree_host.h

 // 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.
 
 #ifndef CC_TREES_LAYER_TREE_HOST_H_
 #define CC_TREES_LAYER_TREE_HOST_H_
 
 #include <limits>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/cancelable_callback.h"
 #include "base/hash_tables.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time.h"
 #include "cc/animation/animation_events.h"
 #include "cc/base/cc_export.h"
 #include "cc/base/scoped_ptr_vector.h"
 #include "cc/debug/latency_info.h"
+#include "cc/input/top_controls_state.h"
 #include "cc/layers/layer_lists.h"
 #include "cc/output/output_surface.h"
 #include "cc/scheduler/rate_limiter.h"
 #include "cc/trees/layer_tree_host_client.h"
 #include "cc/trees/layer_tree_host_common.h"
 #include "cc/trees/layer_tree_settings.h"
 #include "cc/trees/occlusion_tracker.h"
 #include "cc/trees/proxy.h"
 #include "skia/ext/refptr.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebScrollbar.h"
@@ skipping 194 matching lines @@
 
   bool buffered_updates() const {
     return settings_.max_partial_texture_updates !=
         std::numeric_limits<size_t>::max();
   }
   bool RequestPartialTextureUpdate();
 
   void SetDeviceScaleFactor(float device_scale_factor);
   float device_scale_factor() const { return device_scale_factor_; }
 
-  void UpdateTopControlsState(bool enable_hiding,
-                              bool enable_showing,
+  void UpdateTopControlsState(TopControlsState constraints,
+                              TopControlsState current,
                               bool animate);
 
   HeadsUpDisplayLayer* hud_layer() const { return hud_layer_.get(); }
 
   Proxy* proxy() const { return proxy_.get(); }
 
   AnimationRegistrar* animation_registrar() const {
     return animation_registrar_.get();
   }
 
@@ skipping 97 matching lines @@
   bool in_paint_layer_contents_;
 
   LatencyInfo latency_info_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_