[1/5] Pass transformed rasterization policy from Blink

cc/layers/picture_layer.h

Index: cc/layers/picture_layer.h
diff --git a/cc/layers/picture_layer.h b/cc/layers/picture_layer.h
index 15d5825508e9a75a3389381dd0473b1aa5bf0c6d..2754f9e97b9425f5bfadecfeb8c913ad18fc405c 100644
--- a/cc/layers/picture_layer.h
+++ b/cc/layers/picture_layer.h
@@ -28,6 +28,8 @@ class CC_EXPORT PictureLayer : public Layer {
     return picture_layer_inputs_.nearest_neighbor;
   }
 
+  void SetAllowTransformedRasterization(bool allowed);
+
   // Layer interface.
   std::unique_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
   void SetLayerTreeHost(LayerTreeHost* host) override;
@@ -60,6 +62,7 @@ class CC_EXPORT PictureLayer : public Layer {
 
     ContentLayerClient* client = nullptr;
     bool nearest_neighbor = false;
+    bool allow_transformed_rasterization = false;
     gfx::Rect recorded_viewport;
     scoped_refptr<DisplayItemList> display_list;
     size_t painter_reported_memory_usage = 0;
@@ -82,6 +85,8 @@ class CC_EXPORT PictureLayer : public Layer {
 
   void DropRecordingSourceContentIfInvalid();
 
+  bool UseTransformedRasterization() const;

[enne (OOO), 2017/01/03 22:53:01]

style nit: maybe this should be "ShouldUseTransformedRasterization".  Use sounds
like a verb (to start using it) here rather than a query about whether it should
be used.

+
   std::unique_ptr<RecordingSource> recording_source_;
   devtools_instrumentation::
       ScopedLayerObjectTracker instrumentation_object_tracker_;