Consolidate SK_CRASH and sk_throw into SK_ABORT

TBR=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1648343003

Review URL: https://codereview.chromium.org/1648343003
diff --git a/bench/ChecksumBench.cpp b/bench/ChecksumBench.cpp
index 92e7da6..bac7bdd 100644
--- a/bench/ChecksumBench.cpp
+++ b/bench/ChecksumBench.cpp
@@ -45,7 +45,7 @@
             case kSHA1_ChecksumType: return "compute_sha1";
             case kMurmur3_ChecksumType: return "compute_murmur3";
 
-            default: SK_CRASH(); return "";
+            default: SK_ABORT("Invalid Type"); return "";
         }
     }