Convert GrCrash->SkFAIL GrDebugCrash->SkDEBUGFAIL

R=robertphillips@google.com, reed@google.com, mtklein@google.com

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/257393004

git-svn-id: http://skia.googlecode.com/svn/trunk@14460 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrDrawTarget.h b/src/gpu/GrDrawTarget.h
index 732bad0..46dd9d0 100644
--- a/src/gpu/GrDrawTarget.h
+++ b/src/gpu/GrDrawTarget.h
@@ -744,7 +744,7 @@
             case kBuffer_GeometrySrcType:
                 return static_cast<int>(src.fIndexBuffer->sizeInBytes() / sizeof(uint16_t));
             default:
-                GrCrash("Unexpected Index Source.");
+                SkFAIL("Unexpected Index Source.");
                 return 0;
         }
     }