Rename non-aa rect methods on GrDrawContext in anticipation of making them support aa

src/core/SkImageFilter.cpp

Index: src/core/SkImageFilter.cpp
diff --git a/src/core/SkImageFilter.cpp b/src/core/SkImageFilter.cpp
index 25eecb0b5d67b4dbeea15391541be513f15e29e4..abac24cf3fa145044f11f32e307bde1fbfb28a2b 100644
--- a/src/core/SkImageFilter.cpp
+++ b/src/core/SkImageFilter.cpp
@@ -380,7 +380,7 @@ bool SkImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const Cont
 
         SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(dst->asRenderTarget()));
         if (drawContext) {
-            drawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect);
+            drawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect);
 
             WrapTexture(dst, bounds.width(), bounds.height(), result);
             return true;