Save an early test summary in case the test launcher crashes or gets killed

base/test/launcher/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_LAUNCHER_TEST_LAUNCHER_H_
 #define BASE_TEST_LAUNCHER_TEST_LAUNCHER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 132 matching lines @@
 
  private:
   bool Init() WARN_UNUSED_RESULT;
 
   // Runs all tests in current iteration. Uses callbacks to communicate success.
   void RunTests();
 
   void RunTestIteration();
 
   // Saves test results summary as JSON if requested from command line.
-  void MaybeSaveSummaryAsJSON();
+  void MaybeSaveSummaryAsJSON(const std::vector<std::string>& additional_tags);
 
   // Called on a worker thread after a child process finishes.
   void OnLaunchTestProcessFinished(
       const GTestProcessCompletedCallback& callback,
       int exit_code,
       const TimeDelta& elapsed_time,
       bool was_timeout,
       const std::string& output);
 
   // Called when a test iteration is finished.
@@ skipping 76 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(TestLauncher);
 };
 
 // Extract part from |full_output| that applies to |result|.
 std::string GetTestOutputSnippet(const TestResult& result,
                                  const std::string& full_output);
 
 }  // namespace base
 
 #endif  // BASE_TEST_LAUNCHER_TEST_LAUNCHER_H_