Allows fullscreen to be triggered with the key events used for scrolling.

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>
 
@@ skipping 220 matching lines @@
         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(TopControlsState constraints,
                               TopControlsState current,
                               bool animate);
+  void UpdateTopControlsStatePreservingConstraints(
+      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();
   }
 
   skia::RefPtr<SkPicture> CapturePicture();
@@ skipping 108 matching lines @@
         : total_num_cc_layers(0),
           total_num_cc_layers_can_use_lcd_text(0),
           total_num_cc_layers_will_use_lcd_text(0) {}
 
     int64 total_num_cc_layers;
     int64 total_num_cc_layers_can_use_lcd_text;
     int64 total_num_cc_layers_will_use_lcd_text;
   };
   LCDTextMetrics lcd_text_metrics_;
 
+  TopControlsState top_controls_constraints_;

[jamesr, 2013/06/10 23:48:31]

where is this initialized?

[Jinsuk Kim, 2013/06/11 04:53:18]

Good catch. Put the initialization in RenderViewImpl constructor.

+
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_