Update from https://crrev.com/306655

cc/blink/web_compositor_support_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_COMPOSITOR_SUPPORT_IMPL_H_
 #define CC_BLINK_WEB_COMPOSITOR_SUPPORT_IMPL_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "cc/blink/cc_blink_export.h"
 #include "third_party/WebKit/public/platform/WebCompositorAnimationCurve.h"
 #include "third_party/WebKit/public/platform/WebCompositorSupport.h"
+#include "third_party/WebKit/public/platform/WebContentLayerClient.h"
 #include "third_party/WebKit/public/platform/WebLayer.h"
 #include "third_party/WebKit/public/platform/WebTransformOperations.h"
 
 namespace blink {
 class WebGraphicsContext3D;
 }
 
 namespace cc_blink {
 
 class CC_BLINK_EXPORT WebCompositorSupportImpl
@@ skipping 11 matching lines @@
   virtual blink::WebNinePatchLayer* createNinePatchLayer();
   virtual blink::WebScrollbarLayer* createScrollbarLayer(
       blink::WebScrollbar* scrollbar,
       blink::WebScrollbarThemePainter painter,
       blink::WebScrollbarThemeGeometry*);
   virtual blink::WebScrollbarLayer* createSolidColorScrollbarLayer(
       blink::WebScrollbar::Orientation orientation,
       int thumb_thickness,
       int track_start,
       bool is_left_side_vertical_scrollbar);
+#if WEB_DISPLAY_ITEM_LIST_IS_DEFINED
+  virtual blink::WebDisplayItemList* createDisplayItemList();
+#endif
   virtual blink::WebCompositorAnimation* createAnimation(
       const blink::WebCompositorAnimationCurve& curve,
       blink::WebCompositorAnimation::TargetProperty target,
 #ifdef WEB_COMPOSITOR_SUPPORT_CREATE_ANIMATION_SUPPORTS_GROUP
       int group_id,
 #endif
       int animation_id);
   virtual blink::WebFilterAnimationCurve* createFilterAnimationCurve();
   virtual blink::WebFloatAnimationCurve* createFloatAnimationCurve();
   virtual blink::WebScrollOffsetAnimationCurve*
       createScrollOffsetAnimationCurve(
           blink::WebFloatPoint target_value,
           blink::WebCompositorAnimationCurve::TimingFunctionType
               timing_function);
   virtual blink::WebTransformAnimationCurve* createTransformAnimationCurve();
   virtual blink::WebTransformOperations* createTransformOperations();
   virtual blink::WebFilterOperations* createFilterOperations();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebCompositorSupportImpl);
 };
 
 }  // namespace cc_blink
 
 #endif  // CC_BLINK_WEB_COMPOSITOR_SUPPORT_IMPL_H_