Change base::LaunchProcess API slightly

base/process_util_posix.cc

Index: base/process_util_posix.cc
diff --git a/base/process_util_posix.cc b/base/process_util_posix.cc
index 0e116de82671a48bab94f6fa0affcaf8bc9daeff..0fc8c0e1537b7b1797c887d89a891b3698530f94 100644
--- a/base/process_util_posix.cc
+++ b/base/process_util_posix.cc
@@ -528,7 +528,8 @@ char** AlterEnvironment(const environment_vector& changes,
 }
 
 bool LaunchProcess(const std::vector<std::string>& argv,
-                   const LaunchOptions& options) {
+                   const LaunchOptions& options,
+                   ProcessHandle* process_handle) {
   pid_t pid;
   InjectiveMultimap fd_shuffle1, fd_shuffle2;
   if (options.fds_to_remap) {
@@ -631,16 +632,17 @@ bool LaunchProcess(const std::vector<std::string>& argv,
       DPCHECK(ret > 0);
     }
 
-    if (options.process_handle)
-      *options.process_handle = pid;
+    if (process_handle)
+      *process_handle = pid;
   }
 
   return true;
 }
 
 bool LaunchProcess(const CommandLine& cmdline,
-                   const LaunchOptions& options) {
-  return LaunchProcess(cmdline.argv(), options);
+                   const LaunchOptions& options,
+                   ProcessHandle* process_handle) {
+  return LaunchProcess(cmdline.argv(), options, process_handle);
 }
 
 ProcessMetrics::~ProcessMetrics() { }