cc : Fix hit testing bug in resourceless software draw mode

cc/trees/layer_tree_impl.h

 // Copyright 2012 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_IMPL_H_
 #define CC_TREES_LAYER_TREE_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 258 matching lines @@
   bool UpdateDrawProperties(bool update_lcd_text);
   void BuildPropertyTreesForTesting();
 
   void set_needs_update_draw_properties() {
     needs_update_draw_properties_ = true;
   }
   bool needs_update_draw_properties() const {
     return needs_update_draw_properties_;
   }
 
+  bool is_in_resourceless_software_draw_mode() {
+    return (layer_tree_host_impl_->GetDrawMode() ==
+            DRAW_MODE_RESOURCELESS_SOFTWARE);
+  }
+
   void set_needs_full_tree_sync(bool needs) { needs_full_tree_sync_ = needs; }
   bool needs_full_tree_sync() const { return needs_full_tree_sync_; }
 
   void ForceRedrawNextActivation() { next_activation_forces_redraw_ = true; }
 
   void set_has_ever_been_drawn(bool has_drawn) {
     has_ever_been_drawn_ = has_drawn;
   }
   bool has_ever_been_drawn() const { return has_ever_been_drawn_; }
 
@@ skipping 282 matching lines @@
 
   std::unique_ptr<PendingPageScaleAnimation> pending_page_scale_animation_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LayerTreeImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_IMPL_H_