Support comma separated hardware keyboard layout.

chrome/browser/chromeos/input_method/input_method_delegate_impl.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_DELEGATE_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_DELEGATE_IMPL_H_
 
 #include <string>
+#include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chromeos/ime/input_method_delegate.h"
 
 namespace chromeos {
 namespace input_method {
 
 // Accesses the hardware keyboard layout and application locale from the
 // BrowserProcess.
 class InputMethodDelegateImpl : public InputMethodDelegate {
  public:
   InputMethodDelegateImpl();
 
   // InputMethodDelegate implementation.
-  virtual std::string GetHardwareKeyboardLayout() const OVERRIDE;
+  virtual void GetHardwareKeyboardLayout(
+      std::vector<std::string>* out) const OVERRIDE;
   virtual base::string16 GetLocalizedString(int resource_id) const OVERRIDE;
   virtual base::string16 GetDisplayLanguageName(
       const std::string& language_code) const OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(InputMethodDelegateImpl);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_DELEGATE_IMPL_H_