Add GetSupportedLanguages(), ActiveLanguage(), and DeactivateLanguage().

chrome/browser/chromeos/language_library.cc

Index: chrome/browser/chromeos/language_library.cc
diff --git a/chrome/browser/chromeos/language_library.cc b/chrome/browser/chromeos/language_library.cc
index 7db0a2bb4494e9b167f7dd77c9d420cdd60c040e..fcb06045fddcebd54dadc47ba19cb60312161b4b 100644
--- a/chrome/browser/chromeos/language_library.cc
+++ b/chrome/browser/chromeos/language_library.cc
@@ -60,6 +60,14 @@ chromeos::InputLanguageList* LanguageLibrary::GetLanguages() {
   return result ? result : CreateFallbackInputLanguageList();
 }
 
+chromeos::InputLanguageList* LanguageLibrary::GetSupportedLanguages() {
+  chromeos::InputLanguageList* result = NULL;
+  if (EnsureLoaded()) {
+    result = chromeos::GetSupportedLanguages(language_status_connection_);
+  }
+  return result ? result : CreateFallbackInputLanguageList();
+}
+
 void LanguageLibrary::ChangeLanguage(
     LanguageCategory category, const std::string& id) {
   if (EnsureLoaded()) {
@@ -67,6 +75,26 @@ void LanguageLibrary::ChangeLanguage(
   }
 }
 
+bool LanguageLibrary::ActivateLanguage(
+    LanguageCategory category, const std::string& id) {
+  bool success = false;
+  if (EnsureLoaded()) {
+    success = chromeos::ActivateLanguage(language_status_connection_,
+                                         category, id.c_str());
+  }
+  return success;
+}
+
+bool LanguageLibrary::DeactivateLanguage(
+    LanguageCategory category, const std::string& id) {
+  bool success = false;
+  if (EnsureLoaded()) {
+    success = chromeos::DeactivateLanguage(language_status_connection_,
+                                           category, id.c_str());
+  }
+  return success;
+}
+
 // static
 void LanguageLibrary::LanguageChangedHandler(
     void* object, const chromeos::InputLanguage& current_language) {