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/GrGpu.h b/src/gpu/GrGpu.h
index c051f91..dd5b2c8 100644
--- a/src/gpu/GrGpu.h
+++ b/src/gpu/GrGpu.h
@@ -345,7 +345,7 @@
             case kLineStrip_GrPrimitiveType:
                 return kDrawLines_DrawType;
             default:
-                GrCrash("Unexpected primitive type");
+                SkFAIL("Unexpected primitive type");
                 return kDrawTriangles_DrawType;
         }
     }