Remove legacy names no longer referenced in Chrome and WebKit.
Review URL: https://codereview.appspot.com/7311055

git-svn-id: http://skia.googlecode.com/svn/trunk@7640 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/SkGrPixelRef.cpp b/src/gpu/SkGrPixelRef.cpp
index f8160ab..8751c5d 100644
--- a/src/gpu/SkGrPixelRef.cpp
+++ b/src/gpu/SkGrPixelRef.cpp
@@ -174,6 +174,6 @@
     SkAutoLockPixels al(*dst);
     void* buffer = dst->getPixels();
     return fSurface->readPixels(left, top, width, height,
-                                kSkia8888_PM_GrPixelConfig,
+                                kSkia8888_GrPixelConfig,
                                 buffer, dst->rowBytes());
 }