Replace uses of GR_DEBUG by SK_DEBUG.

BUG=None
R=bsalomon@google.com, robertphillips@google.com

Author: tfarina@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23137022

git-svn-id: http://skia.googlecode.com/svn/trunk@10978 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrOvalRenderer.cpp b/src/gpu/GrOvalRenderer.cpp
index 0addaed..4055d2f 100644
--- a/src/gpu/GrOvalRenderer.cpp
+++ b/src/gpu/GrOvalRenderer.cpp
@@ -588,7 +588,7 @@
         fRRectIndexBuffer =
         gpu->createIndexBuffer(sizeof(gRRectIndices), false);
         if (NULL != fRRectIndexBuffer) {
-#if GR_DEBUG
+#ifdef SK_DEBUG
             bool updated =
 #endif
             fRRectIndexBuffer->updateData(gRRectIndices,