Fixed Shadow blur for transparent objects

Source/core/paint/SVGInlineTextBoxPainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/paint/SVGInlineTextBoxPainter.h"
 
 #include "core/dom/DocumentMarkerController.h"
 #include "core/dom/RenderedDocumentMarker.h"
 #include "core/editing/Editor.h"
@@ skipping 307 matching lines @@
         additionalPaintServerTransform = &paintServerTransform;
     }
 
     // FIXME: Non-scaling stroke is not applied here.
 
     if (!SVGRenderSupport::updateGraphicsContext(stateSaver, style, m_svgInlineTextBox.parent()->renderer(), resourceMode, additionalPaintServerTransform))
         return;
 
     if (hasShadow) {
         stateSaver.saveIfNeeded();
+        context->clearShadow();

[Stephen White, 2014/10/23 19:08:48]

I wouldn't bother with this call. If someone has left the drop shadow image
filter active, we'll have bigger problems than just this one call site anyway.

[sugoi1, 2014/10/23 20:25:14]

Done.

         context->setDrawLooper(shadowList->createDrawLooper(DrawLooperBuilder::ShadowRespectsAlpha));
     }
 
     context->setTextDrawingMode(resourceMode == ApplyToFillMode ? TextModeFill : TextModeStroke);
 
     if (scalingFactor != 1 && resourceMode == ApplyToStrokeMode)
         context->setStrokeThickness(context->strokeThickness() * scalingFactor);
 
     TextRunPaintInfo textRunPaintInfo(textRun);
     textRunPaintInfo.from = startPosition;
@@ skipping 100 matching lines @@
 
             fragmentRect = fragmentTransform.mapRect(fragmentRect);
             markerRect.unite(fragmentRect);
         }
     }
 
     toRenderedDocumentMarker(marker)->setRenderedRect(textRenderer.localToAbsoluteQuad(markerRect).enclosingBoundingBox());
 }
 
 } // namespace blink