Revert of Invert DSF to map from delegated frame to layer space

cc/layers/delegated_renderer_layer_impl.h

Index: cc/layers/delegated_renderer_layer_impl.h
diff --git a/cc/layers/delegated_renderer_layer_impl.h b/cc/layers/delegated_renderer_layer_impl.h
index e64fd46959c8bd122068ca2cfaf3c0f64b937de8..e71fce842fbe122ec8e3fc5e658e4a6d2a5a4c9b 100644
--- a/cc/layers/delegated_renderer_layer_impl.h
+++ b/cc/layers/delegated_renderer_layer_impl.h
@@ -77,6 +77,9 @@
       RenderPass::Id delegated_render_pass_id,
       RenderPass::Id* output_render_pass_id) const;
 
+  gfx::Transform DelegatedFrameToLayerSpaceTransform(
+      const gfx::Size& frame_size) const;
+
   void AppendRenderPassQuads(
       QuadSink* quad_sink,
       AppendQuadsData* append_quads_data,
@@ -87,7 +90,6 @@
   virtual const char* LayerTypeAsString() const OVERRIDE;
 
   bool have_render_passes_to_push_;
-  float inverse_device_scale_factor_;
   ScopedPtrVector<RenderPass> render_passes_in_draw_order_;
   base::hash_map<RenderPass::Id, int> render_passes_index_by_id_;
   ResourceProvider::ResourceIdArray resources_;