Update from https://crrev.com/306655

cc/blink/web_display_item_list_impl.h

+// Copyright 2014 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 CC_BLINK_WEB_DISPLAY_ITEM_LIST_IMPL_H_
+#define CC_BLINK_WEB_DISPLAY_ITEM_LIST_IMPL_H_
+
+#include "base/memory/ref_counted.h"
+#include "cc/blink/cc_blink_export.h"
+#include "cc/resources/display_item_list.h"
+#include "third_party/WebKit/public/platform/WebBlendMode.h"
+#include "third_party/WebKit/public/platform/WebContentLayerClient.h"
+#include "third_party/WebKit/public/platform/WebFloatPoint.h"
+#include "third_party/WebKit/public/platform/WebVector.h"
+
+#if WEB_DISPLAY_ITEM_LIST_IS_DEFINED
+#include "third_party/WebKit/public/platform/WebDisplayItemList.h"
+#endif
+
+class SkImageFilter;
+class SkMatrix44;
+class SkPicture;
+class SkRRect;
+
+namespace cc_blink {
+
+#if WEB_DISPLAY_ITEM_LIST_IS_DEFINED
+class WebDisplayItemListImpl : public blink::WebDisplayItemList {
+#else
+class WebDisplayItemListImpl {
+#endif
+
+ public:
+  CC_BLINK_EXPORT WebDisplayItemListImpl();
+  virtual ~WebDisplayItemListImpl();
+
+  scoped_refptr<cc::DisplayItemList> ToDisplayItemList();
+
+  // blink::WebDisplayItemList implementation.
+  virtual void appendDrawingItem(SkPicture* picture,
+                                 const blink::WebFloatPoint& location);
+  virtual void appendClipItem(
+      const blink::WebRect& clip_rect,
+      const blink::WebVector<SkRRect>& rounded_clip_rects);
+  virtual void appendEndClipItem();
+  virtual void appendTransformItem(const SkMatrix44& matrix);
+  virtual void appendEndTransformItem();
+  virtual void appendTransparencyItem(float opacity,
+                                      blink::WebBlendMode blend_mode);
+  virtual void appendEndTransparencyItem();
+  virtual void appendFilterItem(SkImageFilter* filter,
+                                const blink::WebFloatRect& bounds);
+  virtual void appendEndFilterItem();
+
+ private:
+  scoped_refptr<cc::DisplayItemList> display_item_list_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebDisplayItemListImpl);
+};
+
+}  // namespace cc_blink
+
+#endif  // CC_BLINK_WEB_DISPLAY_ITEM_LIST_IMPL_H_