Route selection bounds updates through the compositor

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 <list>
 #include <set>
@@ skipping 160 matching lines @@
       scoped_refptr<Layer> page_scale_layer,
       scoped_refptr<Layer> inner_viewport_scroll_layer,
       scoped_refptr<Layer> outer_viewport_scroll_layer);
   Layer* inner_viewport_scroll_layer() const {
     return inner_viewport_scroll_layer_.get();
   }
   Layer* outer_viewport_scroll_layer() const {
     return outer_viewport_scroll_layer_.get();
   }
 
+  void RegisterSelection(scoped_refptr<Layer> start_layer,
+                         const SelectionHandle& start_handle,
+                         scoped_refptr<Layer> end_layer,
+                         const SelectionHandle& end_handle);
+
   const LayerTreeSettings& settings() const { return settings_; }
 
   void SetDebugState(const LayerTreeDebugState& debug_state);
   const LayerTreeDebugState& debug_state() const { return debug_state_; }
 
   bool has_gpu_rasterization_trigger() const {
     return has_gpu_rasterization_trigger_;
   }
   void set_has_gpu_rasterization_trigger(bool has_trigger) {
     has_gpu_rasterization_trigger_ = has_trigger;
@@ skipping 243 matching lines @@
     int64 total_num_cc_layers_will_use_lcd_text;
   };
   LCDTextMetrics lcd_text_metrics_;
   int id_;
   bool next_commit_forces_redraw_;
 
   scoped_refptr<Layer> page_scale_layer_;
   scoped_refptr<Layer> inner_viewport_scroll_layer_;
   scoped_refptr<Layer> outer_viewport_scroll_layer_;
 
+  scoped_refptr<Layer> start_selection_layer_;
+  scoped_refptr<Layer> end_selection_layer_;
+  SelectionHandle start_selection_handle_;
+  SelectionHandle end_selection_handle_;
+
   SharedBitmapManager* shared_bitmap_manager_;
 
   ScopedPtrVector<SwapPromise> swap_promise_list_;
   std::set<SwapPromiseMonitor*> swap_promise_monitor_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_