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

chrome/browser/first_run/first_run_gtk.cc

Index: chrome/browser/first_run/first_run_gtk.cc
diff --git a/chrome/browser/first_run/first_run_gtk.cc b/chrome/browser/first_run/first_run_gtk.cc
index 6db2da05f0a4f621032857f9c6bdabb06b8bc777..9051456010bb9b2b3b596b2b968c1cae3d882c69 100644
--- a/chrome/browser/first_run/first_run_gtk.cc
+++ b/chrome/browser/first_run/first_run_gtk.cc
@@ -41,7 +41,9 @@ bool FirstRun::ImportBookmarks(const FilePath& import_bookmarks_path) {
                                            import_bookmarks_path);
   // Time to launch the process that is going to do the import. We'll wait
   // for the process to return.
-  return base::LaunchApp(import_cmd, true, false, NULL);
+  base::LaunchOptions options;
+  options.wait = true;
+  return base::LaunchProcess(import_cmd, options);
 }
 
 // static