Don't access DisplayItemClient::VisualRect() for cached display items.

third_party/WebKit/Source/platform/graphics/paint/CompositingDisplayItem.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 CompositingDisplayItem_h
 #define CompositingDisplayItem_h
 
 #include "platform/geometry/FloatRect.h"
 #include "platform/graphics/GraphicsTypes.h"
 #include "platform/graphics/paint/DisplayItem.h"
@@ skipping 15 matching lines @@
       : PairedBeginDisplayItem(client, kBeginCompositing, sizeof(*this)),
         xfer_mode_(xfer_mode),
         opacity_(opacity),
         has_bounds_(bounds),
         color_filter_(color_filter) {
     if (bounds)
       bounds_ = FloatRect(*bounds);
   }
 
   void Replay(GraphicsContext&) const override;
-  void AppendToWebDisplayItemList(const IntRect&,
+  void AppendToWebDisplayItemList(const LayoutSize&,
                                   WebDisplayItemList*) const override;
 
  private:
 #ifndef NDEBUG
   void DumpPropertiesAsDebugString(WTF::StringBuilder&) const override;
 #endif
   bool Equals(const DisplayItem& other) const final {
     return DisplayItem::Equals(other) &&
            xfer_mode_ == static_cast<const BeginCompositingDisplayItem&>(other)
                              .xfer_mode_ &&
@@ skipping 15 matching lines @@
   ColorFilter color_filter_;
 };
 
 class PLATFORM_EXPORT EndCompositingDisplayItem final
     : public PairedEndDisplayItem {
  public:
   EndCompositingDisplayItem(const DisplayItemClient& client)
       : PairedEndDisplayItem(client, kEndCompositing, sizeof(*this)) {}
 
   void Replay(GraphicsContext&) const override;
-  void AppendToWebDisplayItemList(const IntRect&,
+  void AppendToWebDisplayItemList(const LayoutSize&,
                                   WebDisplayItemList*) const override;
 
  private:
 #if DCHECK_IS_ON()
   bool IsEndAndPairedWith(DisplayItem::Type other_type) const final {
     return other_type == kBeginCompositing;
   }
 #endif
 };
 
 }  // namespace blink
 
 #endif  // CompositingDisplayItem_h