Update Source/platform/ to assume Oilpan only.

third_party/WebKit/Source/platform/graphics/filters/SourceAlpha.cpp

 /*
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 11 matching lines @@
 
 #include "platform/graphics/filters/Filter.h"
 #include "platform/graphics/filters/SkiaImageFilterBuilder.h"
 #include "platform/text/TextStream.h"
 #include "third_party/skia/include/effects/SkColorFilterImageFilter.h"
 #include "third_party/skia/include/effects/SkColorMatrixFilter.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
-RawPtr<SourceAlpha> SourceAlpha::create(FilterEffect* sourceEffect)
+SourceAlpha* SourceAlpha::create(FilterEffect* sourceEffect)
 {
     return new SourceAlpha(sourceEffect);
 }
 
 SourceAlpha::SourceAlpha(FilterEffect* sourceEffect)
     : FilterEffect(sourceEffect->getFilter())
 {
     setOperatingColorSpace(sourceEffect->operatingColorSpace());
     inputEffects().append(sourceEffect);
 }
@@ skipping 17 matching lines @@
 }
 
 TextStream& SourceAlpha::externalRepresentation(TextStream& ts, int indent) const
 {
     writeIndent(ts, indent);
     ts << "[SourceAlpha]\n";
     return ts;
 }
 
 } // namespace blink