Speculative fix for recording texture-backed SkImages into SkPictures.

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 1341 matching lines @@
 
     c->restoreToCount(initialSaveCount);
 }
 
 bool shouldDisableDeferral(CanvasImageSource* imageSource)
 {
     if (imageSource->isVideoElement())
         return true;
     if (imageSource->isCanvasElement()) {
         HTMLCanvasElement* canvas = static_cast<HTMLCanvasElement*>(imageSource);
-        if (canvas->is3D())
+        if (canvas->renderingContext() && canvas->renderingContext()->isAccelerated())
             return true;
         if (canvas->isAnimated2D())
             return true;
     }
     return false;
 }
 
 void CanvasRenderingContext2D::drawImage(CanvasImageSource* imageSource,
     float sx, float sy, float sw, float sh,
     float dx, float dy, float dw, float dh, ExceptionState& exceptionState)
@@ skipping 947 matching lines @@
         if (imageType == CanvasRenderingContext2DState::NonOpaqueImage)
             return;
         if (alpha < 0xFF)
             return;
     }
 
     canvas()->buffer()->willOverwriteCanvas();
 }
 
 } // namespace blink