Consolidate SK_CRASH and sk_throw into SK_ABORT

bench/ChecksumBench.cpp

Index: bench/ChecksumBench.cpp
diff --git a/bench/ChecksumBench.cpp b/bench/ChecksumBench.cpp
index 92e7da662f39e5db1eb1c2d678666d9b1d8670b5..bac7bddc81187bcef4613ab43ea0900326239c83 100644
--- a/bench/ChecksumBench.cpp
+++ b/bench/ChecksumBench.cpp
@@ -45,7 +45,7 @@ protected:
             case kSHA1_ChecksumType: return "compute_sha1";
             case kMurmur3_ChecksumType: return "compute_murmur3";
 
-            default: SK_CRASH(); return "";
+            default: SK_ABORT("Invalid Type"); return "";
         }
     }