cc: Remove the base RasterSource

cc/test/fake_picture_layer_impl.cc

Index: cc/test/fake_picture_layer_impl.cc
diff --git a/cc/test/fake_picture_layer_impl.cc b/cc/test/fake_picture_layer_impl.cc
index 93cfbc232700d0ffd6d4de90521292184565f96c..874328711f7a84da5991ff98726cb75267fa73d7 100644
--- a/cc/test/fake_picture_layer_impl.cc
+++ b/cc/test/fake_picture_layer_impl.cc
@@ -13,7 +13,7 @@ namespace cc {
 FakePictureLayerImpl::FakePictureLayerImpl(
     LayerTreeImpl* tree_impl,
     int id,
-    scoped_refptr<RasterSource> raster_source,
+    scoped_refptr<DisplayListRasterSource> raster_source,
     bool is_mask)
     : PictureLayerImpl(tree_impl,
                        id,
@@ -31,7 +31,7 @@ FakePictureLayerImpl::FakePictureLayerImpl(
 FakePictureLayerImpl::FakePictureLayerImpl(
     LayerTreeImpl* tree_impl,
     int id,
-    scoped_refptr<RasterSource> raster_source,
+    scoped_refptr<DisplayListRasterSource> raster_source,
     bool is_mask,
     const gfx::Size& layer_bounds)
     : PictureLayerImpl(tree_impl,
@@ -125,7 +125,7 @@ PictureLayerTiling* FakePictureLayerImpl::LowResTiling() const {
 }
 
 void FakePictureLayerImpl::SetRasterSourceOnPending(
-    scoped_refptr<RasterSource> raster_source,
+    scoped_refptr<DisplayListRasterSource> raster_source,
     const Region& invalidation) {
   DCHECK(layer_tree_impl()->IsPendingTree());
   Region invalidation_temp = invalidation;