Add an even more convenient way to declare tests, with example.

tests/AAClipTest.cpp

 /*
  * Copyright 2011 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 "SkAAClip.h"
 #include "SkCanvas.h"
@@ skipping 376 matching lines @@
         SkAAClip clip;
         SkRect r;
         r.fLeft = SkFloatToScalar(129.892181f);
         r.fTop = SkFloatToScalar(10.3999996f);
         r.fRight = SkFloatToScalar(130.892181f);
         r.fBottom = SkFloatToScalar(20.3999996f);
         clip.setRect(r, true);
     }
 }
 
-static void TestAAClip(skiatest::Reporter* reporter) {
+#include "TestClassDef.h"
+DEF_TEST(AAClip, reporter) {
     test_empty(reporter);
     test_path_bounds(reporter);
     test_irect(reporter);
     test_rgn(reporter);
     test_path_with_hole(reporter);
     test_regressions();
     test_nearly_integral(reporter);
 }
-
-#include "TestClassDef.h"
-DEFINE_TESTCLASS("AAClip", AAClipTestClass, TestAAClip)