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/GrTextureAccess.cpp b/src/gpu/GrTextureAccess.cpp
index e4b0786..91db08b 100644
--- a/src/gpu/GrTextureAccess.cpp
+++ b/src/gpu/GrTextureAccess.cpp
@@ -100,7 +100,7 @@
                 fSwizzleMask |= kA_GrColorComponentFlag;
                 break;
             default:
-                GrCrash("Unexpected swizzle string character.");
+                SkFAIL("Unexpected swizzle string character.");
                 break;
         }
     }