cc: Remove the base RasterSource

cc/playback/discardable_image_map_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/playback/discardable_image_map.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "cc/base/region.h"
-#include "cc/playback/raster_source.h"
 #include "cc/test/fake_content_layer_client.h"
 #include "cc/test/fake_display_list_recording_source.h"
 #include "cc/test/skia_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkGraphics.h"
 #include "third_party/skia/include/core/SkImageGenerator.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/skia_util.h"
 
 namespace cc {
@@ skipping 292 matching lines @@
     display_list->Raster(generator.canvas(), nullptr, visible_rect, 1.f);
   }
   std::vector<PositionDrawImage> images =
       GetDiscardableImagesInRect(image_map, gfx::Rect(0, 0, 1, 1));
   EXPECT_EQ(1u, images.size());
   EXPECT_TRUE(images[0].image == discardable_image.get());
   EXPECT_EQ(gfx::RectF(0, 0, 1 << 25, 1 << 25), images[0].image_rect);
 }
 
 }  // namespace cc