Move ViewDisplayList to GraphicsLayer

Source/core/rendering/PaintPhase.cpp

Index: Source/core/rendering/PaintPhase.cpp
diff --git a/Source/core/rendering/PaintPhase.cpp b/Source/core/rendering/PaintPhase.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..b24895aa3de4cae0ed9dbcdb71d8604cdf27f9dd
--- /dev/null
+++ b/Source/core/rendering/PaintPhase.cpp
@@ -0,0 +1,17 @@
+// 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.
+
+#include "config.h"
+#include "core/rendering/PaintPhase.h"
+
+#include "platform/graphics/paint/DisplayItem.h"
+#include "wtf/Assertions.h"
+
+namespace blink {
+
+// DisplayItem types must be kept in sync with PaintPhase.
+COMPILE_ASSERT((unsigned)DisplayItem::DrawingPaintPhaseBlockBackground == (unsigned)PaintPhaseBlockBackground, DisplayItem_Type_should_stay_in_sync);
+COMPILE_ASSERT((unsigned)DisplayItem::DrawingPaintPhaseClippingMask == (unsigned)PaintPhaseClippingMask, DisplayItem_Type_should_stay_in_sync);
+
+} // namespace blink