Clean up users of a deprecated base::LaunchApp API.

chrome/browser/ui/webui/options/advanced_options_utils_gtk.cc

Index: chrome/browser/ui/webui/options/advanced_options_utils_gtk.cc
diff --git a/chrome/browser/ui/webui/options/advanced_options_utils_gtk.cc b/chrome/browser/ui/webui/options/advanced_options_utils_gtk.cc
index b55454d94ec03f4c9a68e34ecec8b109f6b62f1f..6f267a6e10d2f2d55dd1dcf5a604878d71fa8b33 100644
--- a/chrome/browser/ui/webui/options/advanced_options_utils_gtk.cc
+++ b/chrome/browser/ui/webui/options/advanced_options_utils_gtk.cc
@@ -74,9 +74,10 @@ bool StartProxyConfigUtil(TabContents* tab_contents, const char* command[]) {
   std::vector<std::string> argv;
   for (size_t i = 0; command[i]; ++i)
     argv.push_back(command[i]);
-  base::file_handle_mapping_vector no_files;
   base::ProcessHandle handle;
-  if (!base::LaunchApp(argv, no_files, false, &handle)) {
+  base::LaunchOptions options;
+  options.process_handle = &handle;
+  if (!base::LaunchProcess(argv, options)) {
     LOG(ERROR) << "StartProxyConfigUtil failed to start " << command[0];
     return false;
   }