Invert DSF to map from delegated frame to layer space

cc/layers/delegated_renderer_layer.cc

 // 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.
 
 #include "cc/layers/delegated_renderer_layer.h"
 
 #include "cc/layers/delegated_renderer_layer_impl.h"
 #include "cc/output/delegated_frame_data.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/trees/blocking_task_runner.h"
@@ skipping 49 matching lines @@
 
   Layer::SetLayerTreeHost(host);
 }
 
 void DelegatedRendererLayer::PushPropertiesTo(LayerImpl* impl) {
   Layer::PushPropertiesTo(impl);
 
   DelegatedRendererLayerImpl* delegated_impl =
       static_cast<DelegatedRendererLayerImpl*>(impl);
 
-  delegated_impl->SetDisplaySize(display_size_);
-
   delegated_impl->CreateChildIdIfNeeded(
       frame_provider_->GetReturnResourcesCallbackForImplThread());
 
   if (frame_data_)
     delegated_impl->SetFrameData(frame_data_, frame_damage_);
   frame_data_ = NULL;
   frame_damage_ = gfx::RectF();
 }
 
 void DelegatedRendererLayer::ProviderHasNewFrame() {
   should_collect_new_frame_ = true;
   SetNeedsUpdate();
   // The active frame needs to be replaced and resources returned before the
   // commit is called complete.
   SetNextCommitWaitsForActivation();
 }
 
-void DelegatedRendererLayer::SetDisplaySize(const gfx::Size& size) {
-  if (display_size_ == size)
-    return;
-  display_size_ = size;
-  SetNeedsCommit();
-}
-
 bool DelegatedRendererLayer::Update(ResourceUpdateQueue* queue,
                                     const OcclusionTracker<Layer>* occlusion) {
   bool updated = Layer::Update(queue, occlusion);
   if (!should_collect_new_frame_)
     return updated;
 
   frame_data_ =
       frame_provider_->GetFrameDataAndRefResources(this, &frame_damage_);
   should_collect_new_frame_ = false;
 
   SetNeedsPushProperties();
   return true;
 }
 
 }  // namespace cc