Update from https://crrev.com/306655

cc/resources/display_item.cc

Index: cc/resources/display_item.cc
diff --git a/cc/resources/raster_buffer.cc b/cc/resources/display_item.cc
similarity index 65%
copy from cc/resources/raster_buffer.cc
copy to cc/resources/display_item.cc
index 8f5671720e386ef03d7bea099ab3ce6164dcacd8..33069a53fdf27f60efe5c6f43caf4f707c83a4d5 100644
--- a/cc/resources/raster_buffer.cc
+++ b/cc/resources/display_item.cc
@@ -2,14 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "cc/resources/raster_buffer.h"
+#include "cc/resources/display_item.h"
 
 namespace cc {
 
-RasterBuffer::RasterBuffer() {
-}
-
-RasterBuffer::~RasterBuffer() {
+DisplayItem::DisplayItem() {
 }
 
 }  // namespace cc