cc: Remove the base RasterSource

cc/tiles/tile_manager_perftest.cc

Index: cc/tiles/tile_manager_perftest.cc
diff --git a/cc/tiles/tile_manager_perftest.cc b/cc/tiles/tile_manager_perftest.cc
index bb619428e42a82e8d2cfb037e34dd9ccaa0e5f18..3bb46e46bd957a864d6d0b6196bedf2dcb07c8a2 100644
--- a/cc/tiles/tile_manager_perftest.cc
+++ b/cc/tiles/tile_manager_perftest.cc
@@ -154,14 +154,14 @@ class TileManagerPerfTest : public testing::Test {
     active_root_layer_->set_fixed_tile_size(tile_size);
   }
 
-  void SetupTrees(scoped_refptr<RasterSource> pending_raster_source,
-                  scoped_refptr<RasterSource> active_raster_source) {
+  void SetupTrees(scoped_refptr<DisplayListRasterSource> pending_raster_source,
+                  scoped_refptr<DisplayListRasterSource> active_raster_source) {
     SetupPendingTree(active_raster_source);
     ActivateTree();
     SetupPendingTree(pending_raster_source);
   }
 
-  void SetupPendingTree(scoped_refptr<RasterSource> raster_source) {
+  void SetupPendingTree(scoped_refptr<DisplayListRasterSource> raster_source) {
     host_impl_.CreatePendingTree();
     LayerTreeImpl* pending_tree = host_impl_.pending_tree();
     // Clear recycled tree.