Disable 2D canvas deferral on text rendering when compositing

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 835 matching lines @@
 
   if (!std::isfinite(x) || !std::isfinite(y))
     return;
   if (max_width && (!std::isfinite(*max_width) || *max_width <= 0))
     return;
 
   // Currently, SkPictureImageFilter does not support subpixel text
   // anti-aliasing, which is expected when !creationAttributes().alpha(), so we
   // need to fall out of display list mode when drawing text to an opaque
   // canvas. crbug.com/583809
-  if (!CreationAttributes().alpha() && !IsComposited()) {
+  if (!IsComposited()) {
     canvas()->DisableDeferral(
         kDisableDeferralReasonSubPixelTextAntiAliasingSupport);
   }
 
   const Font& font = AccessFont();
   font.GetFontDescription().SetSubpixelAscentDescent(true);
   const SimpleFontData* font_data = font.PrimaryFont();
   DCHECK(font_data);
   if (!font_data)
     return;
@@ skipping 323 matching lines @@
   }
   return true;
 }
 
 void CanvasRenderingContext2D::ResetUsageTracking() {
   UsageCounters new_counters;
   usage_counters_ = new_counters;
 }
 
 }  // namespace blink