GTTF: Make --help and --gtest_help behave correctly with --brave-new-test-launcher

base/test/test_launcher.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_TEST_TEST_LAUNCHER_H_
 #define BASE_TEST_TEST_LAUNCHER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/time/time.h"
 
 class CommandLine;
 
 namespace testing {
 class TestCase;
 class TestInfo;
 }
 
 namespace base {
 
 struct LaunchOptions;
 
 // Constants for GTest command-line flags.
 extern const char kGTestFilterFlag[];
+extern const char kGTestHelpFlag[];
 extern const char kGTestListTestsFlag[];
 extern const char kGTestRepeatFlag[];
 extern const char kGTestRunDisabledTestsFlag[];
 extern const char kGTestOutputFlag[];
 
 // Structure containing result of a single test.
 struct TestResult {
   enum Status {
     TEST_UNKNOWN,  // Status not set.
     TEST_SUCCESS,  // Test passed.
@@ skipping 76 matching lines @@
 
 // Launches GTest-based tests from the current executable
 // using |launcher_delegate|.
 int LaunchTests(TestLauncherDelegate* launcher_delegate,
                 int argc,
                 char** argv) WARN_UNUSED_RESULT;
 
 }  // namespace base
 
 #endif  // BASE_TEST_TEST_LAUNCHER_H_