Move ViewDisplayList to GraphicsLayer

Source/platform/graphics/paint/ClipDisplayItem.cpp

+// 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 "platform/graphics/paint/ClipDisplayItem.h"
+
+#include "platform/geometry/RoundedRect.h"
+#include "platform/graphics/GraphicsContext.h"
+
+namespace blink {
+
+void ClipDisplayItem::replay(GraphicsContext* context)
+{
+    context->save();
+    context->clip(m_clipRect);
+    for (RoundedRect roundedRect : m_roundedRectClips)
+        context->clipRoundedRect(roundedRect);
+}
+
+void EndClipDisplayItem::replay(GraphicsContext* context)
+{
+    context->restore();
+}
+
+#ifndef NDEBUG
+WTF::String ClipDisplayItem::asDebugString() const
+{
+    return String::format("{%s, type: \"%s\", clipRect: [%d,%d,%d,%d]}",
+        clientDebugString().utf8().data(), typeAsDebugString(type()).utf8().data(),
+        m_clipRect.x(), m_clipRect.y(), m_clipRect.width(), m_clipRect.height());
+}
+#endif
+
+} // namespace blink