(On behalf of yusukes) Handle Caps Lock short cut (Shift+Search) in ash [part 2 of 2].

chrome/browser/chrome_browser_main_extra_parts_aura.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_extra_parts_aura.h"
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/shell.h"
 #include "base/command_line.h"
 #include "chrome/common/chrome_switches.h"
+#include "chrome/browser/ui/views/aura/caps_lock_handler.h"
 #include "chrome/browser/ui/views/aura/chrome_shell_delegate.h"
 #include "chrome/browser/ui/views/aura/screen_orientation_listener.h"
 #include "chrome/browser/ui/views/aura/screenshot_taker.h"
 #include "ui/aura/root_window.h"
 #include "ui/gfx/compositor/compositor_setup.h"
 
 #if defined(OS_CHROMEOS)
+#include "chrome/browser/chromeos/input_method/input_method_manager.h"
 #include "chrome/browser/chromeos/system/runtime_environment.h"
 #endif
 
 ChromeBrowserMainExtraPartsAura::ChromeBrowserMainExtraPartsAura()
     : ChromeBrowserMainExtraParts() {
 }
 
 void ChromeBrowserMainExtraPartsAura::PreProfileInit() {
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kTestCompositor)) {
     ui::SetupTestCompositor();
   }
 
 #if defined(OS_CHROMEOS)
   if (chromeos::system::runtime_environment::IsRunningOnChromeOS())
     aura::RootWindow::set_use_fullscreen_host_window(true);
 #endif
 
   // Shell takes ownership of ChromeShellDelegate.
   ash::Shell* shell = ash::Shell::CreateInstance(new ChromeShellDelegate);
   shell->accelerator_controller()->SetScreenshotDelegate(
       scoped_ptr<ash::ScreenshotDelegate>(new ScreenshotTaker).Pass());
+#if defined(OS_CHROMEOS)
+  chromeos::input_method::XKeyboard* xkeyboard =
+      chromeos::input_method::InputMethodManager::GetInstance()->GetXKeyboard();
+  shell->accelerator_controller()->SetCapsLockDelegate(
+      scoped_ptr<ash::CapsLockDelegate>(new CapsLockHandler(xkeyboard)).Pass());
+#endif
 
   // Make sure the singleton ScreenOrientationListener object is created.
   ScreenOrientationListener::GetInstance();
 }
 
 void ChromeBrowserMainExtraPartsAura::PostMainMessageLoopRun() {
   ash::Shell::DeleteInstance();
   aura::RootWindow::DeleteInstance();
 }