Add IME UI related extension API.

chrome/browser/extensions/extension_service.cc

Index: chrome/browser/extensions/extension_service.cc
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index 34427a020d8bde46390411d7ec974dfcfaf0885c..746c2cdc8ec599403ad8132b83e7890be59f1e91 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -78,6 +78,10 @@
 #include "chrome/browser/chromeos/extensions/file_browser_event_router.h"
 #endif
 
+#if defined(TOUCH_UI)
+#include "chrome/browser/extensions/extension_ime_ui_api.h"
+#endif
+
 using base::Time;
 
 namespace errors = extension_manifest_errors;
@@ -507,10 +511,16 @@ void ExtensionService::InitEventRouters() {
   ExtensionManagementEventRouter::GetInstance()->Init();
   ExtensionProcessesEventRouter::GetInstance()->ObserveProfile(profile_);
   ExtensionWebNavigationEventRouter::GetInstance()->Init();
+
 #if defined(OS_CHROMEOS)
   ExtensionFileBrowserEventRouter::GetInstance()->ObserveFileSystemEvents(
       profile_);
 #endif
+
+#if defined(OS_CHROMEOS) && defined(TOUCH_UI)
+  ExtensionImeUiEventRouter::GetInstance()->Init();
+#endif
+
   event_routers_initialized_ = true;
 }