Add the ability to filter out extension IMEs from the language settings page.

chrome/browser/chromeos/preferences.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_PREFERENCES_H_
 #define CHROME_BROWSER_CHROMEOS_PREFERENCES_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 99 matching lines @@
   BooleanPrefMember disable_drive_;
   BooleanPrefMember disable_drive_over_cellular_;
   BooleanPrefMember disable_drive_hosted_files_;
   FilePathPrefMember download_default_directory_;
 
   // Input method preferences.
   StringPrefMember preferred_languages_;
   StringPrefMember preload_engines_;
   StringPrefMember current_input_method_;
   StringPrefMember previous_input_method_;
+  StringPrefMember filtered_extension_imes_;
 
   BooleanPrefMember chewing_boolean_prefs_[
       language_prefs::kNumChewingBooleanPrefs];
   StringPrefMember chewing_multiple_choice_prefs_[
       language_prefs::kNumChewingMultipleChoicePrefs];
   IntegerPrefMember chewing_hsu_sel_key_type_;
   IntegerPrefMember chewing_integer_prefs_[
       language_prefs::kNumChewingIntegerPrefs];
   StringPrefMember hangul_keyboard_;
   StringPrefMember hangul_hanja_binding_keys_;
@@ skipping 16 matching lines @@
   BooleanPrefMember enable_screen_lock_;
 
   BooleanPrefMember enable_drm_;
 
   DISALLOW_COPY_AND_ASSIGN(Preferences);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_PREFERENCES_H_