Merge 132856

Source/WebCore/rendering/svg/RenderSVGRoot.cpp

Index: Source/WebCore/rendering/svg/RenderSVGRoot.cpp
===================================================================
--- Source/WebCore/rendering/svg/RenderSVGRoot.cpp	(revision 134257)
+++ Source/WebCore/rendering/svg/RenderSVGRoot.cpp	(working copy)
@@ -298,16 +298,20 @@
     IntPoint adjustedPaintOffset = roundedIntPoint(paintOffset);
     childPaintInfo.applyTransform(AffineTransform::translation(adjustedPaintOffset.x() - x(), adjustedPaintOffset.y() - y()) * localToParentTransform());
 
-    SVGRenderingContext renderingContext;
-    bool continueRendering = true;
-    if (childPaintInfo.phase == PaintPhaseForeground) {
-        renderingContext.prepareToRenderSVGContent(this, childPaintInfo);
-        continueRendering = renderingContext.isRenderingPrepared();
+    // SVGRenderingContext must be destroyed before we restore the childPaintInfo.context, because a filter may have
+    // changed the context and it is only reverted when the SVGRenderingContext destructor finishes applying the filter.
+    {
+        SVGRenderingContext renderingContext;
+        bool continueRendering = true;
+        if (childPaintInfo.phase == PaintPhaseForeground) {
+            renderingContext.prepareToRenderSVGContent(this, childPaintInfo);
+            continueRendering = renderingContext.isRenderingPrepared();
+        }
+
+        if (continueRendering)
+            RenderBox::paint(childPaintInfo, LayoutPoint());
     }
 
-    if (continueRendering)
-        RenderBox::paint(childPaintInfo, LayoutPoint());
-
     childPaintInfo.context->restore();
 }