Invert DSF to map from delegated frame to layer space

cc/test/fake_delegated_renderer_layer_impl.cc

 // Copyright 2013 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/test/fake_delegated_renderer_layer_impl.h"
 
 #include "base/bind.h"
 #include "cc/output/delegated_frame_data.h"
 #include "cc/quads/draw_quad.h"
 #include "cc/resources/returned_resource.h"
 #include "cc/trees/layer_tree_impl.h"
 
 namespace cc {
 
 FakeDelegatedRendererLayerImpl::FakeDelegatedRendererLayerImpl(
-    LayerTreeImpl* tree_impl, int id)
-    : DelegatedRendererLayerImpl(tree_impl, id) {}
+    LayerTreeImpl* tree_impl,
+    int id)
+    : DelegatedRendererLayerImpl(tree_impl, id) {
+}
 
 FakeDelegatedRendererLayerImpl::~FakeDelegatedRendererLayerImpl() {}
 
 scoped_ptr<LayerImpl> FakeDelegatedRendererLayerImpl::CreateLayerImpl(
     LayerTreeImpl* tree_impl) {
   return FakeDelegatedRendererLayerImpl::Create(
       tree_impl, id()).PassAs<LayerImpl>();
 }
 
 static ResourceProvider::ResourceId AddResourceToFrame(
@@ skipping 14 matching lines @@
   ResourceProvider::ResourceIdArray array;
   array = ResourcesForTesting();
   for (size_t i = 0; i < array.size(); ++i)
     set.insert(array[i]);
   return set;
 }
 
 void NoopReturnCallback(const ReturnedResourceArray& returned) {}
 
 void FakeDelegatedRendererLayerImpl::SetFrameDataForRenderPasses(
+    float device_scale_factor,
     ScopedPtrVector<RenderPass>* pass_list) {
   scoped_ptr<DelegatedFrameData> delegated_frame(new DelegatedFrameData);
+  delegated_frame->device_scale_factor = device_scale_factor;
   delegated_frame->render_pass_list.swap(*pass_list);
 
   ResourceProvider* resource_provider = layer_tree_impl()->resource_provider();
 
   DrawQuad::ResourceIteratorCallback add_resource_to_frame_callback =
       base::Bind(&AddResourceToFrame, resource_provider, delegated_frame.get());
   for (size_t i = 0; i < delegated_frame->render_pass_list.size(); ++i) {
     RenderPass* pass = delegated_frame->render_pass_list[i];
     for (size_t j = 0; j < pass->quad_list.size(); ++j)
       pass->quad_list[j]->IterateResources(add_resource_to_frame_callback);
   }
 
   CreateChildIdIfNeeded(base::Bind(&NoopReturnCallback));
   SetFrameData(delegated_frame.get(), gfx::RectF());
 }
 
 }  // namespace cc