Maintain SkPaint in GraphicsContextState.

Source/core/rendering/svg/RenderSVGResourcePattern.cpp

 /*
  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) Research In Motion Limited 2010. 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 140 matching lines @@
     if (!patternData)
         return false;
 
     // Draw pattern
     context->save();
 
     const SVGRenderStyle* svgStyle = style->svgStyle();
     ASSERT(svgStyle);
 
     if (resourceMode & ApplyToFillMode) {
-        context->setAlpha(svgStyle->fillOpacity());
+        context->setAlphaAsFloat(svgStyle->fillOpacity());
         context->setFillPattern(patternData->pattern);
         context->setFillRule(svgStyle->fillRule());
     } else if (resourceMode & ApplyToStrokeMode) {
         if (svgStyle->vectorEffect() == VE_NON_SCALING_STROKE)
             patternData->pattern->setPatternSpaceTransform(transformOnNonScalingStroke(object, patternData->transform));
-        context->setAlpha(svgStyle->strokeOpacity());
+        context->setAlphaAsFloat(svgStyle->strokeOpacity());
         context->setStrokePattern(patternData->pattern);
         SVGRenderSupport::applyStrokeStyleToContext(context, style, object);
     }
 
     if (resourceMode & ApplyToTextMode) {
         if (resourceMode & ApplyToFillMode)
             context->setTextDrawingMode(TextModeFill);
         else if (resourceMode & ApplyToStrokeMode)
             context->setTextDrawingMode(TextModeStroke);
     }
@@ skipping 93 matching lines @@
             continue;
         if (element->renderer()->needsLayout())
             return nullptr;
         SVGRenderingContext::renderSubtree(tileImage->context(), element->renderer(), contentTransformation);
     }
 
     return tileImage.release();
 }
 
 }