Update from https://crrev.com/308996

sky/engine/platform/graphics/GraphicsContext.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008-2009 Torch Mobile, Inc.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 147 matching lines @@
     // fixed (e.g. when drawing to context backed by an ImageBuffer).
     void disableAntialiasingOptimizationForHairlineImages() { ASSERT(!isRecording()); m_antialiasHairlineImages = true; }
     bool shouldAntialiasHairlineImages() const { return m_antialiasHairlineImages; }
 
     void setShouldClampToSourceRect(bool clampToSourceRect) { mutableState()->setShouldClampToSourceRect(clampToSourceRect); }
     bool shouldClampToSourceRect() const { return immutableState()->shouldClampToSourceRect(); }
 
     // FIXME: the setter is only used once, at construction time; convert to a constructor param,
     // and possibly consolidate with other flags (paintDisabled, isPrinting, ...)
     void setShouldSmoothFonts(bool smoothFonts) { m_shouldSmoothFonts = smoothFonts; }
-    bool shouldSmoothFonts() const { return m_shouldSmoothFonts; }
 
     // Turn off LCD text for the paint if not supported on this context.
     void adjustTextRenderMode(SkPaint*);
-    bool couldUseLCDRenderedText();
+    bool couldUseLCDRenderedText() const { return m_isCertainlyOpaque && m_shouldSmoothFonts; }
 
     void setTextDrawingMode(TextDrawingModeFlags mode) { mutableState()->setTextDrawingMode(mode); }
     TextDrawingModeFlags textDrawingMode() const { return immutableState()->textDrawingMode(); }
 
     void setAlphaAsFloat(float alpha) { mutableState()->setAlphaAsFloat(alpha);}
     int getNormalizedAlpha() const
     {
         int alpha = immutableState()->alpha();
         return alpha > 255 ? 255 : alpha;
     }
 
     void setImageInterpolationQuality(InterpolationQuality quality) { mutableState()->setInterpolationQuality(quality); }
     InterpolationQuality imageInterpolationQuality() const { return immutableState()->interpolationQuality(); }
 
     void setCompositeOperation(CompositeOperator, WebBlendMode = WebBlendModeNormal);
     CompositeOperator compositeOperation() const { return immutableState()->compositeOperator(); }
     WebBlendMode blendModeOperation() const { return immutableState()->blendMode(); }
 
     // Speicy the device scale factor which may change the way document markers
     // and fonts are rendered.
     void setDeviceScaleFactor(float factor) { m_deviceScaleFactor = factor; }
     float deviceScaleFactor() const { return m_deviceScaleFactor; }
 
     // If true we are (most likely) rendering to a web page and the
     // canvas has been prepared with an opaque background. If false,
     // the canvas may have transparency (as is the case when rendering
     // to a canvas object).
     void setCertainlyOpaque(bool isOpaque) { m_isCertainlyOpaque = isOpaque; }
-    bool isCertainlyOpaque() const { return m_isCertainlyOpaque; }
 
     bool isAccelerated() const { return m_accelerated; }
     void setAccelerated(bool accelerated) { m_accelerated = accelerated; }
 
     // The opaque region is empty until tracking is turned on.
     // It is never clerared by the context.
     enum RegionTrackingMode {
         RegionTrackingDisabled = 0,
         RegionTrackingOpaque,
         RegionTrackingOverwrite
@@ skipping 310 matching lines @@
 
     bool m_accelerated : 1;
     bool m_isCertainlyOpaque : 1;
     bool m_antialiasHairlineImages : 1;
     bool m_shouldSmoothFonts : 1;
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_PLATFORM_GRAPHICS_GRAPHICSCONTEXT_H_