Consolidate RecordBrowserStartupTime() into one location

chrome/browser/chrome_browser_main_x11.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chrome_browser_main.h"
 
 #include "base/bind.h"
 #include "base/debug/debugger.h"
 #include "base/message_loop.h"
 #include "chrome/browser/browser_shutdown.h"
@@ skipping 64 matching lines @@
 #else
   metrics->RecordBreakpadRegistration(false);
 #endif
   metrics->RecordBreakpadHasDebugger(base::debug::BeingDebugged());
 }
 
 void WarnAboutMinimumSystemRequirements() {
   // Nothing to warn about on X11 right now.
 }
 
-void RecordBrowserStartupTime() {
-  // Not implemented on X11 for now.
-}
-
 // From browser_main_win.h, stubs until we figure out the right thing...
 
 int DoUninstallTasks(bool chrome_still_running) {
   return content::RESULT_CODE_NORMAL_EXIT;
 }
 
 void SetBrowserX11ErrorHandlers() {
   // Set up error handlers to make sure profile gets written if X server
   // goes away.
   ui::SetX11ErrorHandlers(BrowserX11ErrorHandler, BrowserX11IOErrorHandler);
 }