blink: Cleanup class forward declarations

third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.h

 // 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.
 
 #ifndef PaintArtifactCompositor_h
 #define PaintArtifactCompositor_h
 
 #include "base/memory/ref_counted.h"
 #include "platform/PlatformExport.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/graphics/GraphicsLayerClient.h"
 #include "platform/graphics/paint/PaintController.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/PtrUtil.h"
 #include "wtf/Vector.h"
 #include <memory>
 
 namespace cc {
 class Layer;
 }
 
 namespace gfx {
-class Transform;
 class Vector2dF;
 }
 
 namespace blink {
 
-class DisplayItemClient;
-class IntRect;
 class JSONObject;
 class PaintArtifact;
 class WebLayer;
 struct PaintChunk;
 
 // Responsible for managing compositing in terms of a PaintArtifact.
 //
 // Owns a subtree of the compositor layer tree, and updates it in response to
 // changes in the paint artifact.
 //
@@ skipping 70 matching lines @@
   bool m_extraDataForTestingEnabled = false;
   std::unique_ptr<ExtraDataForTesting> m_extraDataForTesting;
   friend class StubChromeClientForSPv2;
 
   bool m_isTrackingRasterInvalidations;
 };
 
 }  // namespace blink
 
 #endif  // PaintArtifactCompositor_h