remove legacy Skia flags

third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc.
  * All rights reserved.
  * Copyright (C) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  * Copyright (C) 2012, 2013 Intel Corporation. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
@@ skipping 361 matching lines @@
       buffer->setHasExpensiveOp();
   }
 
   canvas()->didDraw(SkRect::Make(dirtyRect));
 }
 
 bool CanvasRenderingContext2D::stateHasFilter() {
   return state().hasFilter(canvas(), canvas()->size(), this);
 }
 
-SkImageFilter* CanvasRenderingContext2D::stateGetFilter() {
+sk_sp<SkImageFilter> CanvasRenderingContext2D::stateGetFilter() {
   return state().getFilter(canvas(), canvas()->size(), this);
 }
 
 void CanvasRenderingContext2D::snapshotStateForFilter() {
   // The style resolution required for fonts is not available in frame-less
   // documents.
   if (!canvas()->document().frame())
     return;
 
   modifiableState().setFontForFilter(accessFont());
@@ skipping 765 matching lines @@
   }
   return true;
 }
 
 void CanvasRenderingContext2D::resetUsageTracking() {
   UsageCounters newCounters;
   m_usageCounters = newCounters;
 }
 
 }  // namespace blink