Remove assorted unnecessary includes in core/layout/

third_party/WebKit/Source/core/layout/ImageQualityController.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ImageQualityController_h
 #define ImageQualityController_h
 
 #include "base/gtest_prod_util.h"
-#include "core/layout/LayoutObject.h"
+#include "core/CoreExport.h"
+#include "platform/Timer.h"
 #include "platform/geometry/LayoutSize.h"
+#include "platform/graphics/Image.h"
 #include "wtf/HashMap.h"
 
 namespace blink {
 
+class LayoutObject;
+
 typedef HashMap<const void*, LayoutSize> LayerSizeMap;
 
 struct ObjectResizeInfo {
     LayerSizeMap layerSizeMap;
     bool isResizing;
 };
 
 typedef HashMap<const LayoutObject*, ObjectResizeInfo> ObjectLayerSizeMap;
 
 class CORE_EXPORT ImageQualityController final {
@@ skipping 37 matching lines @@
     // For calling setTimer(),
     FRIEND_TEST_ALL_PREFIXES(ImageQualityControllerTest, LowQualityFilterForResizingImage);
     FRIEND_TEST_ALL_PREFIXES(ImageQualityControllerTest, MediumQualityFilterForNotAnimatedWhileAnotherAnimates);
     FRIEND_TEST_ALL_PREFIXES(ImageQualityControllerTest, DontKickTheAnimationTimerWhenPaintingAtTheSameSize);
     FRIEND_TEST_ALL_PREFIXES(ImageQualityControllerTest, DontRestartTimerUnlessAdvanced);
 };
 
 } // namespace blink
 
 #endif