Revert of Use element id's for animations

third_party/WebKit/Source/platform/graphics/CompositorElementId.h

Index: third_party/WebKit/Source/platform/graphics/CompositorElementId.h
diff --git a/third_party/WebKit/Source/platform/graphics/CompositorElementId.h b/third_party/WebKit/Source/platform/graphics/CompositorElementId.h
deleted file mode 100644
index 8d6deb31bb17dedb4b4a54000f9ba830b8f4809a..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/platform/graphics/CompositorElementId.h
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright 2016 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 CompositorElementId_h
-#define CompositorElementId_h
-
-#include "cc/animation/element_id.h"
-#include "platform/PlatformExport.h"
-
-namespace blink {
-
-enum class CompositorSubElementId {
-    Primary,
-    Scroll,
-    LinkHighlight
-};
-
-using CompositorElementId = cc::ElementId;
-
-CompositorElementId PLATFORM_EXPORT createCompositorElementId(int domNodeId, CompositorSubElementId);
-
-} // namespace blink
-
-#endif // CompositorElementId_h