Print stack traces in child processes when browser tests failed.

base/process/launch.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.
 
 // This file contains functions for launching subprocesses.
 
 #ifndef BASE_PROCESS_LAUNCH_H_
 #define BASE_PROCESS_LAUNCH_H_
 
 #include <string>
@@ skipping 218 matching lines @@
 BASE_EXPORT void CloseSuperfluousFds(const InjectiveMultimap& saved_map);
 #endif  // defined(OS_POSIX)
 
 #if defined(OS_WIN)
 // Set |job_object|'s JOBOBJECT_EXTENDED_LIMIT_INFORMATION
 // BasicLimitInformation.LimitFlags to |limit_flags|.
 BASE_EXPORT bool SetJobObjectLimitFlags(HANDLE job_object, DWORD limit_flags);
 
 // Output multi-process printf, cout, cerr, etc to the cmd.exe console that ran
 // chrome. This is not thread-safe: only call from main thread.
-BASE_EXPORT void RouteStdioToConsole();
+BASE_EXPORT void RouteStdioToConsole(bool create_console_if_not_found);
 #endif  // defined(OS_WIN)
 
 // Executes the application specified by |cl| and wait for it to exit. Stores
 // the output (stdout) in |output|. Redirects stderr to /dev/null. Returns true
 // on success (application launched and exited cleanly, with exit code
 // indicating success).
 BASE_EXPORT bool GetAppOutput(const CommandLine& cl, std::string* output);
 
+// Like GetAppOutput, but also includes stderr.
+BASE_EXPORT bool GetAppOutputAndError(const CommandLine& cl,
+                                      std::string* output);
+
 #if defined(OS_WIN)
 // A Windows-specific version of GetAppOutput that takes a command line string
 // instead of a CommandLine object. Useful for situations where you need to
 // control the command line arguments directly.
 BASE_EXPORT bool GetAppOutput(const StringPiece16& cl, std::string* output);
 #endif
 
 #if defined(OS_POSIX)
 // A POSIX-specific version of GetAppOutput that takes an argv array
 // instead of a CommandLine.  Useful for situations where you need to
@@ skipping 54 matching lines @@
 // multiple threads are running, since at the time the fork happened, the
 // threads could have been in any state (potentially holding locks, etc.).
 // Callers should most likely call execve() in the child soon after calling
 // this.
 BASE_EXPORT pid_t ForkWithFlags(unsigned long flags, pid_t* ptid, pid_t* ctid);
 #endif
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_LAUNCH_H_