Cleanup resourceless_software_draw()

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 <list>
 #include <set>
 #include <string>
@@ skipping 63 matching lines @@
   // ---------------------------------------------------------------------------
   const LayerTreeSettings& settings() const;
   const RendererCapabilitiesImpl& GetRendererCapabilities() const;
   ContextProvider* context_provider() const;
   OutputSurface* output_surface() const;
   ResourceProvider* resource_provider() const;
   TileManager* tile_manager() const;
   FrameRateCounter* frame_rate_counter() const;
   PaintTimeCounter* paint_time_counter() const;
   MemoryHistory* memory_history() const;
-  bool resourceless_software_draw() const;
   gfx::Size device_viewport_size() const;
   bool IsActiveTree() const;
   bool IsPendingTree() const;
   bool IsRecycleTree() const;
   LayerImpl* FindActiveTreeLayerById(int id);
   LayerImpl* FindPendingTreeLayerById(int id);
   LayerImpl* FindRecycleTreeLayerById(int id);
   int MaxTextureSize() const;
   bool PinchGestureActive() const;
   BeginFrameArgs CurrentBeginFrameArgs() const;
@@ skipping 258 matching lines @@
 
   int render_surface_layer_list_id_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LayerTreeImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_IMPL_H_