Remove 'native' context unit test macro.

tests/Test.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef skiatest_Test_DEFINED
 #define skiatest_Test_DEFINED
 
 #include "SkString.h"
@@ skipping 155 matching lines @@
     skiatest::TestRegistry name##TestRegistry(                                       \
             skiatest::Test(#name, true, test_gpu_contexts_##name));                  \
     void test_##name(skiatest::Reporter* reporter, GPUTEST_CONTEXT_ARGS(__VA_ARGS__))
 
 #define DEF_GPUTEST_FOR_ALL_CONTEXTS(name, reporter, ...) \
         DEF_GPUTEST_FOR_CONTEXTS(name, skiatest::kAll_GPUTestContexts, reporter, __VA_ARGS__)
 #define DEF_GPUTEST_FOR_RENDERING_CONTEXTS(name, reporter, ...) \
         DEF_GPUTEST_FOR_CONTEXTS(name, skiatest::kAllRendering_GPUTestContexts, reporter, __VA_ARGS__)
 #define DEF_GPUTEST_FOR_NULL_CONTEXT(name, reporter, ...) \
         DEF_GPUTEST_FOR_CONTEXTS(name, skiatest::kNull_GPUTestContexts, reporter, __VA_ARGS__)
-#define DEF_GPUTEST_FOR_NATIVE_CONTEXT(name, reporter, ...) \
-        DEF_GPUTEST_FOR_CONTEXTS(name, skiatest::kNative_GPUTestContexts, reporter, __VA_ARGS__)
 
 #define REQUIRE_PDF_DOCUMENT(TEST_NAME, REPORTER)                             \
     do {                                                                      \
         SkDynamicMemoryWStream testStream;                                    \
         SkAutoTUnref<SkDocument> testDoc(SkDocument::CreatePDF(&testStream)); \
         if (!testDoc) {                                                       \
             INFOF(REPORTER, "PDF disabled; %s test skipped.", #TEST_NAME);    \
             return;                                                           \
         }                                                                     \
     } while (false)
 
 #endif