GrDrawContext now holds GrRenderTarget pointer

src/effects/SkXfermodeImageFilter.cpp

Index: src/effects/SkXfermodeImageFilter.cpp
diff --git a/src/effects/SkXfermodeImageFilter.cpp b/src/effects/SkXfermodeImageFilter.cpp
index 2311bb75f4ef07d2b1c001a1c0bc8efc787635e4..e443a008aa1d2f4457b1405de6f9af155ea2abd2 100644
--- a/src/effects/SkXfermodeImageFilter.cpp
+++ b/src/effects/SkXfermodeImageFilter.cpp
@@ -197,13 +197,12 @@ bool SkXfermodeImageFilter::filterImageGPU(Proxy* proxy,
         paint.addColorFragmentProcessor(xferFP)->unref();
     }
 
-    SkAutoTUnref<GrDrawContext> drawContext(context->drawContext());
+    SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(dst->asRenderTarget()));
     if (!drawContext) {
         return false;
     }
 
-    drawContext->drawRect(dst->asRenderTarget(), GrClip::WideOpen(), paint, 
-                          SkMatrix::I(), srcRect);
+    drawContext->drawRect(GrClip::WideOpen(), paint, SkMatrix::I(), srcRect);
 
     offset->fX = backgroundOffset.fX;
     offset->fY = backgroundOffset.fY;