blink: Cleanup class forward declarations

third_party/WebKit/Source/platform/graphics/paint/DisplayItemList.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 DisplayItemList_h
 #define DisplayItemList_h
 
 #include "platform/graphics/ContiguousContainer.h"
 #include "platform/graphics/paint/DisplayItem.h"
 #include "platform/graphics/paint/Transform3DDisplayItem.h"
 #include "wtf/Alignment.h"
 #include "wtf/Assertions.h"
 
-class SkPictureGpuAnalyzer;
-
 namespace blink {
 
 struct PaintChunk;
 
 // kDisplayItemAlignment must be a multiple of alignof(derived display item) for
 // each derived display item; the ideal value is the least common multiple.
 // Currently the limiting factor is TransformationMatrix (in
 // BeginTransform3DDisplayItem), which requests 16-byte alignment.
 static const size_t kDisplayItemAlignment =
     WTF_ALIGN_OF(BeginTransform3DDisplayItem);
@@ skipping 44 matching lines @@
   Range<iterator> itemsInPaintChunk(const PaintChunk&);
   Range<const_iterator> itemsInPaintChunk(const PaintChunk&) const;
 
  private:
   Vector<IntRect> m_visualRects;
 };
 
 }  // namespace blink
 
 #endif  // DisplayItemList_h