cc: Remove GetRasterSource from PictureLayerTilingClient.

cc/layers/picture_layer_impl.cc

Index: cc/layers/picture_layer_impl.cc
diff --git a/cc/layers/picture_layer_impl.cc b/cc/layers/picture_layer_impl.cc
index 6d8914033e1d43802052d9f9302bb656a1b9e657..afb78f5ae268555f6f56c14f366bfaaa82918ed8 100644
--- a/cc/layers/picture_layer_impl.cc
+++ b/cc/layers/picture_layer_impl.cc
@@ -122,14 +122,16 @@ void PictureLayerImpl::PushPropertiesTo(LayerImpl* base_layer) {
   twin_layer_ = layer_impl;
   layer_impl->twin_layer_ = this;
 
-  layer_impl->UpdateRasterSource(raster_source_);
-
   DCHECK(!raster_source_->IsSolidColor() || !tilings_->num_tilings());
   // Tilings would be expensive to push, so we swap.
   layer_impl->tilings_.swap(tilings_);
   layer_impl->tilings_->SetClient(layer_impl);
-  if (tilings_)
+  if (tilings_) {
     tilings_->SetClient(this);
+    tilings_->SetRasterSource(raster_source_.get());
+  }
+
+  layer_impl->UpdateRasterSource(raster_source_);
 
   // Ensure that the recycle tree doesn't have any unshared tiles.
   if (tilings_ && raster_source_->IsSolidColor())
@@ -167,6 +169,9 @@ void PictureLayerImpl::UpdateRasterSource(
   if (could_have_tilings != CanHaveTilings()) {
     layer_tree_impl()->set_needs_update_draw_properties();
   }
+
+  if (tilings_)
+    tilings_->SetRasterSource(raster_source_.get());
 }
 
 void PictureLayerImpl::AppendQuads(RenderPass* render_pass,
@@ -632,10 +637,6 @@ scoped_refptr<Tile> PictureLayerImpl::CreateTile(PictureLayerTiling* tiling,
       flags);
 }
 
-RasterSource* PictureLayerImpl::GetRasterSource() {
-  return raster_source_.get();
-}
-
 const Region* PictureLayerImpl::GetPendingInvalidation() {
   if (layer_tree_impl()->IsPendingTree())
     return &invalidation_;
@@ -865,7 +866,7 @@ void PictureLayerImpl::DoPostCommitInitialization() {
   DCHECK(layer_tree_impl()->IsPendingTree());
 
   if (!tilings_)
-    tilings_ = make_scoped_ptr(new PictureLayerTilingSet(this));
+    tilings_ = PictureLayerTilingSet::Create(this, raster_source_.get());
 
   PictureLayerImpl* twin_layer = GetPendingOrActiveTwinLayer();
   if (twin_layer) {