Improve process launch handle sharing API.

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 71 matching lines @@
     // processes.
     USE_JOB_OBJECTS = (1 << 0),
 
     // Allows breakaway from job on Windows. May result in some child processes
     // not being properly terminated after launcher dies if these processes
     // fail to cooperate.
     ALLOW_BREAKAWAY_FROM_JOB = (1 << 1),
   };
 
   struct LaunchOptions {
+    LaunchOptions();
+    LaunchOptions(const LaunchOptions& other);
+    ~LaunchOptions();
+
     int flags = 0;
+    // These mirror values in base::LaunchOptions, see it for details.
 #if defined(OS_WIN)
-    // These mirror values in base::LaunchOptions, see it for details.
-    HandlesToInheritVector* handles_to_inherit = nullptr;
-    bool inherit_handles = false;
+    base::LaunchOptions::Inherit inherit_mode =
+        base::LaunchOptions::Inherit::kSpecific;
+    base::HandlesToInheritVector handles_to_inherit;
 #elif defined(OS_POSIX)
-    const FileHandleMappingVector* fds_to_remap = nullptr;
+    FileHandleMappingVector fds_to_remap;
 #endif
   };
 
   // Constructor. |parallel_jobs| is the limit of simultaneous parallel test
   // jobs.
   TestLauncher(TestLauncherDelegate* launcher_delegate, size_t parallel_jobs);
   ~TestLauncher();
 
   // Runs the launcher. Must be called at most once.
   bool Run() WARN_UNUSED_RESULT;
@@ skipping 135 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_