cc: Remove the base RasterSource

cc/raster/tile_task_worker_pool.cc

Index: cc/raster/tile_task_worker_pool.cc
diff --git a/cc/raster/tile_task_worker_pool.cc b/cc/raster/tile_task_worker_pool.cc
index b1d7b70a229377349362890f448ac2190c8a795a..34c84cbd9a20125c833c9eec0d4112bb0c4b6093 100644
--- a/cc/raster/tile_task_worker_pool.cc
+++ b/cc/raster/tile_task_worker_pool.cc
@@ -7,7 +7,7 @@
 #include <algorithm>
 
 #include "base/trace_event/trace_event.h"
-#include "cc/playback/raster_source.h"
+#include "cc/playback/display_list_raster_source.h"
 #include "skia/ext/refptr.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkDrawFilter.h"
@@ -165,15 +165,16 @@ class SkipImageFilter : public SkDrawFilter {
 };
 
 // static
-void TileTaskWorkerPool::PlaybackToMemory(void* memory,
-                                          ResourceFormat format,
-                                          const gfx::Size& size,
-                                          size_t stride,
-                                          const RasterSource* raster_source,
-                                          const gfx::Rect& canvas_bitmap_rect,
-                                          const gfx::Rect& canvas_playback_rect,
-                                          float scale,
-                                          bool include_images) {
+void TileTaskWorkerPool::PlaybackToMemory(
+    void* memory,
+    ResourceFormat format,
+    const gfx::Size& size,
+    size_t stride,
+    const DisplayListRasterSource* raster_source,
+    const gfx::Rect& canvas_bitmap_rect,
+    const gfx::Rect& canvas_playback_rect,
+    float scale,
+    bool include_images) {
   TRACE_EVENT0("cc", "TileTaskWorkerPool::PlaybackToMemory");
 
   DCHECK(IsSupportedPlaybackToMemoryFormat(format)) << format;