Remove unused includes from various .cpp files in core/

Source/core/page/animation/CSSPropertyAnimation.cpp

 /*
  * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer. 
@@ skipping 15 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/page/animation/CSSPropertyAnimation.h"
 
 #include <algorithm>
 #include "CSSPropertyNames.h"
 #include "core/css/CSSCrossfadeValue.h"
-#include "core/css/CSSImageGeneratorValue.h"
 #include "core/css/CSSImageValue.h"
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/StylePropertyShorthand.h"
 #include "core/loader/cache/CachedImage.h"
 #include "core/page/animation/AnimationBase.h"
 #include "core/platform/FloatConversion.h"
-#include "core/platform/graphics/transforms/IdentityTransformOperation.h"
-#include "core/platform/graphics/transforms/Matrix3DTransformOperation.h"
-#include "core/platform/graphics/transforms/MatrixTransformOperation.h"
 #include "core/rendering/ClipPathOperation.h"
 #include "core/rendering/RenderBox.h"
 #include "core/rendering/style/RenderStyle.h"
 #include "core/rendering/style/StyleCachedImage.h"
 #include "core/rendering/style/StyleGeneratedImage.h"
 #include <wtf/Noncopyable.h>
 #include <wtf/RefCounted.h>
 
 namespace WebCore {
 
@@ skipping 1187 matching lines @@
 }
 
 int CSSPropertyAnimation::getNumProperties()
 {
     ensurePropertyMap();
 
     return gPropertyWrappers->size();
 }
 
 }