Use DEFINE_TESTCLASS_SHORT macro in tests.

tests/DynamicHashTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Test.h"
 #include "SkTDynamicHash.h"
 
@@ skipping 129 matching lines @@
 }
 
 static void test_dynamic_hash(skiatest::Reporter* reporter) {
     test_growth(reporter);
     test_add(reporter);
     test_lookup(reporter);
     test_remove(reporter);
 }
 
 #include "TestClassDef.h"
-DEFINE_TESTCLASS("DynamicHash", DynamicHashTestClass, test_dynamic_hash);
+DEFINE_TESTCLASS_SHORT(test_dynamic_hash);