The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/54fdf8fba6470d68d6ba4abaf738e570c7137a04

commit 54fdf8fba6470d68d6ba4abaf738e570c7137a04
Author: tomhudson <tomhudson@google.com>
Date: Fri Apr 01 20:45:55 2016

Remove SK_SUPPORT_LEGACY_XFERMODE_PTR

Favor Skia's sk_sp smart pointers over the old raw pointer API.
Also take advantage of a few nearby sk_sp<SkImageFilter> opportunities.

R=fmalita@chromium.org,danakj@chromium.org
TBR=sky@chromium.org,junov@chromium.org
BUG= 599466 ,skia:5077
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1849213002

Cr-Commit-Position: refs/heads/master@{#384684}

[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/cc/output/gl_renderer.cc
[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/cc/output/software_renderer.cc
[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/skia/config/SkUserConfig.h
[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/skia/ext/benchmarking_canvas.cc
[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/skia/ext/benchmarking_canvas.h
[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.cpp
[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/third_party/WebKit/Source/platform/graphics/CrossfadeGeneratedImage.cpp
[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/third_party/WebKit/Source/platform/graphics/filters/FEBlend.cpp
[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/third_party/WebKit/Source/platform/graphics/filters/FEComposite.cpp
[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/third_party/WebKit/Source/platform/graphics/filters/SkiaImageFilterBuilder.cpp
[modify] https://crrev.com/54fdf8fba6470d68d6ba4abaf738e570c7137a04/ui/views/controls/button/label_button_border.cc