Add a DEF_GPUTEST() macro.

This macro is similar to DEF_TEST() and simplifies the process of
setting up a GPU test.

BUG=skia:1952
TEST=tests
R=mtklein@google.com

Review URL: https://codereview.chromium.org/132293005

git-svn-id: http://skia.googlecode.com/svn/trunk@13033 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/SurfaceTest.cpp b/tests/SurfaceTest.cpp
index 5e95017..b580999 100644
--- a/tests/SurfaceTest.cpp
+++ b/tests/SurfaceTest.cpp
@@ -1,14 +1,15 @@
-
 /*
  * 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 "SkCanvas.h"
 #include "SkRRect.h"
 #include "SkSurface.h"
 #include "Test.h"
+#include "TestClassDef.h"
 
 #if SK_SUPPORT_GPU
 #include "GrContextFactory.h"
@@ -231,7 +232,7 @@
 
 }
 
-static void TestSurface(skiatest::Reporter* reporter, GrContextFactory* factory) {
+DEF_GPUTEST(Surface, reporter, factory) {
     TestSurfaceCopyOnWrite(reporter, kRaster_SurfaceType, NULL);
     TestSurfaceCopyOnWrite(reporter, kPicture_SurfaceType, NULL);
     TestSurfaceWritableAfterSnapshotRelease(reporter, kRaster_SurfaceType, NULL);
@@ -254,6 +255,3 @@
     }
 #endif
 }
-
-#include "TestClassDef.h"
-DEFINE_GPUTESTCLASS("Surface", SurfaceTestClass, TestSurface)