Change base::LaunchProcess API slightly

Rather than passing the out param process handle via the options,
take it as a function argument.  This simplifies many callers.

BUG=88990

Review URL: http://codereview.chromium.org/7377012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@92701 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/browser_main_win.cc b/chrome/browser/browser_main_win.cc
index 0cb0441..3611b21 100644
--- a/chrome/browser/browser_main_win.cc
+++ b/chrome/browser/browser_main_win.cc
@@ -266,7 +266,7 @@
         uninstall_cmd.AppendSwitch(installer::switches::kForceUninstall);
         uninstall_cmd.AppendSwitch(
             installer::switches::kDoNotRemoveSharedItems);
-        base::LaunchProcess(uninstall_cmd, base::LaunchOptions());
+        base::LaunchProcess(uninstall_cmd, base::LaunchOptions(), NULL);
       }
       return true;
     }