Update chrome/browser/extensions to use the new version of LaunchProcess.

chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc

Index: chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc
diff --git a/chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc b/chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc
index 073b2745c1abb862a646df2db0bb523355272e3f..22976865c1f13535f2f71eb8f67fcd70c8f98974 100644
--- a/chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc
+++ b/chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc
@@ -81,8 +81,8 @@ bool NativeProcessLauncher::LaunchNativeProcess(
   options.allow_new_privs = true;
 #endif
 
-  base::ProcessHandle process_handle;
-  if (!base::LaunchProcess(command_line, options, &process_handle)) {
+  base::Process local_process = base::LaunchProcess(command_line, options);
+  if (!local_process.IsValid()) {
     LOG(ERROR) << "Error launching process";
     return false;
   }
@@ -91,7 +91,7 @@ bool NativeProcessLauncher::LaunchNativeProcess(
   write_pipe_read_fd.reset();
   read_pipe_write_fd.reset();
 
-  *process = base::Process(process_handle);
+  *process = local_process.Pass();
   *read_file = base::File(read_pipe_read_fd.release());
   *write_file = base::File(write_pipe_write_fd.release());