Replace uses of GR_DEBUGCODE by SkDEBUGCODE.

BUG=None
TEST=none, no functional changes.
R=bsalomon@google.com, robertphillips@google.com

Author: tfarina@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23703010

git-svn-id: http://skia.googlecode.com/svn/trunk@11142 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrBlend.cpp b/src/gpu/GrBlend.cpp
index 31e45fa..c8631c4 100644
--- a/src/gpu/GrBlend.cpp
+++ b/src/gpu/GrBlend.cpp
@@ -113,7 +113,7 @@
             break;
     }
     // We may have invalidated these above and shouldn't read them again.
-    GR_DEBUGCODE(dstColor = constantColor = GrColor_ILLEGAL;)
+    SkDEBUGCODE(dstColor = constantColor = GrColor_ILLEGAL;)
 
     if (kZero_GrBlendCoeff == *srcCoeff || (valid_color(srcCompFlags) && 0 == srcColor)) {
         *srcCoeff = kZero_GrBlendCoeff;