Cleanup: Remove an unused parameter in StartupBrowserCreator.

chrome/browser/chrome_browser_main.cc

Index: chrome/browser/chrome_browser_main.cc
diff --git a/chrome/browser/chrome_browser_main.cc b/chrome/browser/chrome_browser_main.cc
index 81c7c0c8a0af79f95d61c5722a3bb07fe87312e4..75518a2f8d575ae0d583242e59e70fe639e4749f 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -1515,7 +1515,6 @@ int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
 
   // We are in regular browser boot sequence. Open initial tabs and enter the
   // main message loop.
-  int result_code;
 #if defined(OS_CHROMEOS)
   // On ChromeOS multiple profiles doesn't apply, and will break if we load
   // them this early as the cryptohome hasn't yet been mounted (which happens
@@ -1527,7 +1526,7 @@ int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
 #endif
 
   if (browser_creator_->Start(parsed_command_line(), base::FilePath(),
-                              profile_, last_opened_profiles, &result_code)) {
+                              profile_, last_opened_profiles)) {
 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
     // Initialize autoupdate timer. Timer callback costs basically nothing
     // when browser is not in persistent mode, so it's OK to let it ride on