Remove all traces of compositing reasons from cc

cc/layers/compositing_reasons.h

Index: cc/layers/compositing_reasons.h
diff --git a/cc/layers/compositing_reasons.h b/cc/layers/compositing_reasons.h
deleted file mode 100644
index 6331a906adab98ff3f62613937b5101c9928f941..0000000000000000000000000000000000000000
--- a/cc/layers/compositing_reasons.h
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2013 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 CC_LAYERS_COMPOSITING_REASONS_H_
-#define CC_LAYERS_COMPOSITING_REASONS_H_
-
-#include "base/port.h"
-
-namespace cc {
-
-// This is a clone of CompositingReasons and WebCompositingReasons from Blink.
-const uint64 kCompositingReasonUnknown = 0;
-const uint64 kCompositingReason3DTransform = GG_UINT64_C(1) << 0;
-const uint64 kCompositingReasonVideo = GG_UINT64_C(1) << 1;
-const uint64 kCompositingReasonCanvas = GG_UINT64_C(1) << 2;
-const uint64 kCompositingReasonPlugin = GG_UINT64_C(1) << 3;
-const uint64 kCompositingReasonIFrame = GG_UINT64_C(1) << 4;
-const uint64 kCompositingReasonBackfaceVisibilityHidden = GG_UINT64_C(1) << 5;
-const uint64 kCompositingReasonAnimation = GG_UINT64_C(1) << 6;
-const uint64 kCompositingReasonFilters = GG_UINT64_C(1) << 7;
-const uint64 kCompositingReasonPositionFixed = GG_UINT64_C(1) << 8;
-const uint64 kCompositingReasonPositionSticky = GG_UINT64_C(1) << 9;
-const uint64 kCompositingReasonOverflowScrollingTouch = GG_UINT64_C(1) << 10;
-const uint64 kCompositingReasonAssumedOverlap = GG_UINT64_C(1) << 12;
-const uint64 kCompositingReasonOverlap = GG_UINT64_C(1) << 13;
-const uint64 kCompositingReasonNegativeZIndexChildren = GG_UINT64_C(1) << 14;
-const uint64 kCompositingReasonTransformWithCompositedDescendants =
-    GG_UINT64_C(1) << 15;
-const uint64 kCompositingReasonOpacityWithCompositedDescendants =
-    GG_UINT64_C(1) << 16;
-const uint64 kCompositingReasonMaskWithCompositedDescendants =
-    GG_UINT64_C(1) << 17;
-const uint64 kCompositingReasonReflectionWithCompositedDescendants =
-    GG_UINT64_C(1) << 18;
-const uint64 kCompositingReasonFilterWithCompositedDescendants =
-    GG_UINT64_C(1) << 19;
-const uint64 kCompositingReasonBlendingWithCompositedDescendants =
-    GG_UINT64_C(1) << 20;
-const uint64 kCompositingReasonClipsCompositingDescendants =
-    GG_UINT64_C(1) << 21;
-const uint64 kCompositingReasonPerspective = GG_UINT64_C(1) << 22;
-const uint64 kCompositingReasonPreserve3D = GG_UINT64_C(1) << 23;
-const uint64 kCompositingReasonReflectionOfCompositedParent =
-    GG_UINT64_C(1) << 24;
-const uint64 kCompositingReasonRoot = GG_UINT64_C(1) << 25;
-const uint64 kCompositingReasonLayerForClip = GG_UINT64_C(1) << 26;
-const uint64 kCompositingReasonLayerForScrollbar = GG_UINT64_C(1) << 27;
-const uint64 kCompositingReasonLayerForScrollingContainer =
-    GG_UINT64_C(1) << 28;
-const uint64 kCompositingReasonLayerForForeground = GG_UINT64_C(1) << 29;
-const uint64 kCompositingReasonLayerForBackground = GG_UINT64_C(1) << 30;
-const uint64 kCompositingReasonLayerForMask = GG_UINT64_C(1) << 31;
-const uint64 kCompositingReasonOverflowScrollingParent = GG_UINT64_C(1) << 32;
-const uint64 kCompositingReasonOutOfFlowClipping = GG_UINT64_C(1) << 33;
-const uint64 kCompositingReasonIsolateCompositedDescendants =
-    GG_UINT64_C(1) << 35;
-
-typedef uint64 CompositingReasons;
-
-}  // namespace cc
-
-#endif  // CC_LAYERS_COMPOSITING_REASONS_H_