stop using SkXfermode -- use SkBlendMode instead

cc/blink/web_display_item_list_impl.cc

 // 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 "cc/blink/web_display_item_list_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <vector>
@@ skipping 92 matching lines @@
       transform);
 }
 
 void WebDisplayItemListImpl::appendEndTransformItem() {
   display_item_list_
       ->CreateAndAppendPairedEndItem<cc::EndTransformDisplayItem>();
 }
 
 void WebDisplayItemListImpl::appendCompositingItem(
     float opacity,
-    SkXfermode::Mode xfermode,
+    SkBlendMode xfermode,
     SkRect* bounds,
     SkColorFilter* color_filter) {
   DCHECK_GE(opacity, 0.f);
   DCHECK_LE(opacity, 1.f);
   // TODO(ajuma): This should really be rounding instead of flooring the alpha
   // value, but that breaks slimming paint reftests.
 
   const bool kLcdTextRequiresOpaqueLayer = true;
   display_item_list_
       ->CreateAndAppendPairedBeginItem<cc::CompositingDisplayItem>(
@@ skipping 34 matching lines @@
 }
 
 void WebDisplayItemListImpl::setIsSuitableForGpuRasterization(bool isSuitable) {
   display_item_list_->SetIsSuitableForGpuRasterization(isSuitable);
 }
 
 WebDisplayItemListImpl::~WebDisplayItemListImpl() {
 }
 
 }  // namespace cc_blink