Revert of Make GrDrawState and GrPaint take GrEffect* instead of GrEffectRef*.

src/core/SkImageFilter.cpp

Index: src/core/SkImageFilter.cpp
diff --git a/src/core/SkImageFilter.cpp b/src/core/SkImageFilter.cpp
index 5a5d5bd822b6e6db60cc540c2220467304029f8f..4c4b56beace2f60b9ff858e70c76cd6c1f3b2cd7 100644
--- a/src/core/SkImageFilter.cpp
+++ b/src/core/SkImageFilter.cpp
@@ -204,8 +204,9 @@
     matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top()));
     this->asNewEffect(&effect, srcTexture, matrix, bounds);
     SkASSERT(effect);
+    SkAutoUnref effectRef(effect);
     GrPaint paint;
-    paint.addColorEffect(effect)->unref();
+    paint.addColorEffect(effect);
     context->drawRectToRect(paint, dstRect, srcRect);
 
     SkAutoTUnref<GrTexture> resultTex(dst.detach());
@@ -298,7 +299,7 @@
     return true;
 }
 
-bool SkImageFilter::asNewEffect(GrEffect**, GrTexture*, const SkMatrix&, const SkIRect&) const {
+bool SkImageFilter::asNewEffect(GrEffectRef**, GrTexture*, const SkMatrix&, const SkIRect&) const {
     return false;
 }