Support comma separated hardware keyboard layout.

chrome/browser/chromeos/input_method/input_method_util.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_UTIL_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_UTIL_H_
 
 #include <cstddef>
 #include <map>
 #include <string>
@@ skipping 79 matching lines @@
   // Gets the language codes associated with the given input method IDs.
   // The returned language codes won't have duplicates.
   void GetLanguageCodesFromInputMethodIds(
       const std::vector<std::string>& input_method_ids,
       std::vector<std::string>* out_language_codes) const;
 
   // Gets first input method associated with the language.
   // Returns empty string on error.
   std::string GetLanguageDefaultInputMethodId(const std::string& language_code);
 
-  // Returns the input method ID of the hardware keyboard. e.g. "xkb:us::eng"
-  // for the US Qwerty keyboard.
-  std::string GetHardwareInputMethodId() const;
+  // Fills the input method IDs of the hardware keyboard. e.g. "xkb:us::eng"
+  // for the US Qwerty keyboard. |out| must not be NULL.
+  void GetHardwareInputMethodIds(std::vector<std::string>* out) const;
 
   // Returns the login-allowed input method ID of the hardware keyboard.
-  std::string GetHardwareLoginInputMethodId() const;
+  void GetHardwareLoginInputMethodId(std::vector<std::string>* out) const;
 
   // Returns true if given input method can be used to input login data.
   bool IsLoginKeyboard(const std::string& input_method_id) const;
 
   // Returns true if the given input method id is supported.
   bool IsValidInputMethodId(const std::string& input_method_id) const;
 
   // Returns true if the given input method id is for a keyboard layout.
   static bool IsKeyboardLayout(const std::string& input_method_id);
 
@@ skipping 57 matching lines @@
 
   InputMethodDelegate* delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(InputMethodUtil);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_UTIL_H_