Use WebKit compositor in ui::Layer

ui/gfx/compositor/compositor_test_support.cc

Index: ui/gfx/compositor/compositor_test_support.cc
diff --git a/ui/gfx/compositor/compositor_test_support.cc b/ui/gfx/compositor/compositor_test_support.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e72bd0c8204bc5290b1077dbaab1144aa055e212
--- /dev/null
+++ b/ui/gfx/compositor/compositor_test_support.cc
@@ -0,0 +1,35 @@
+// Copyright (c) 2011 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 "ui/gfx/compositor/compositor_test_support.h"
+
+#if defined(USE_WEBKIT_COMPOSITOR)
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
+#include "webkit/glue/webkitplatformsupport_impl.h"
+#endif
+
+namespace ui {
+
+#if defined(USE_WEBKIT_COMPOSITOR)
+static webkit_glue::WebKitPlatformSupportImpl* g_webkit_support;
+#endif
+
+void CompositorTestSupport::Initialize() {
+#if defined(USE_WEBKIT_COMPOSITOR)
+  DCHECK(!g_webkit_support);
+  g_webkit_support = new webkit_glue::WebKitPlatformSupportImpl;
+  WebKit::initialize(g_webkit_support);
+#endif
+}
+
+void CompositorTestSupport::Terminate() {
+#if defined(USE_WEBKIT_COMPOSITOR)
+  DCHECK(g_webkit_support);
+  WebKit::shutdown();
+  delete g_webkit_support;
+  g_webkit_support = NULL;
+#endif
+}
+
+}  // namespace ui