CSS Blending: Mix-blend-mode shouldn't force the creation of a composited layer.

webkit/renderer/compositor_bindings/web_compositing_reasons.cc

 // 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.
 
 #include "base/basictypes.h"
 #include "base/port.h"
 #include "cc/layers/compositing_reasons.h"
 #include "third_party/WebKit/public/platform/WebCompositingReasons.h"
 
 #define COMPILE_ASSERT_MATCHING_UINT64(cc_name, webkit_name)                  \
@@ skipping 41 matching lines @@
 
 COMPILE_ASSERT_MATCHING_UINT64(
     cc::kCompositingReasonPositionSticky,
     WebKit::CompositingReasonPositionSticky);
 
 COMPILE_ASSERT_MATCHING_UINT64(
     cc::kCompositingReasonOverflowScrollingTouch,
     WebKit::CompositingReasonOverflowScrollingTouch);
 
 COMPILE_ASSERT_MATCHING_UINT64(
-    cc::kCompositingReasonBlending,
-    WebKit::CompositingReasonBlending);
-
-COMPILE_ASSERT_MATCHING_UINT64(
     cc::kCompositingReasonAssumedOverlap,
     WebKit::CompositingReasonAssumedOverlap);
 
 COMPILE_ASSERT_MATCHING_UINT64(
     cc::kCompositingReasonOverlap,
     WebKit::CompositingReasonOverlap);
 
 COMPILE_ASSERT_MATCHING_UINT64(
     cc::kCompositingReasonNegativeZIndexChildren,
     WebKit::CompositingReasonNegativeZIndexChildren);
@@ skipping 66 matching lines @@
     cc::kCompositingReasonLayerForMask,
     WebKit::CompositingReasonLayerForMask);
 
 COMPILE_ASSERT_MATCHING_UINT64(
     cc::kCompositingReasonOverflowScrollingParent,
     WebKit::CompositingReasonOverflowScrollingParent);
 
 COMPILE_ASSERT_MATCHING_UINT64(
     cc::kCompositingReasonOutOfFlowClipping,
     WebKit::CompositingReasonOutOfFlowClipping);