Refactors keyboard related code so mash can use a keyboard

chrome/browser/chromeos/chrome_browser_main_chromeos.h

Index: chrome/browser/chromeos/chrome_browser_main_chromeos.h
diff --git a/chrome/browser/chromeos/chrome_browser_main_chromeos.h b/chrome/browser/chromeos/chrome_browser_main_chromeos.h
index dc2bb36cef18dafde8d754373e4390b3eb51c908..67960cf62692c6088bcf04a32d500575e542e6ed 100644
--- a/chrome/browser/chromeos/chrome_browser_main_chromeos.h
+++ b/chrome/browser/chromeos/chrome_browser_main_chromeos.h
@@ -22,6 +22,7 @@ class ArcServiceManager;
 
 namespace chromeos {
 
+class ChromeInterfaceFactory;
 class DataPromoNotification;
 class EventRewriter;
 class EventRewriterController;
@@ -84,6 +85,10 @@ class ChromeBrowserMainPartsChromeos : public ChromeBrowserMainPartsLinux {
 
   scoped_ptr<arc::ArcServiceManager> arc_service_manager_;
 
+#if defined(MOJO_SHELL_CLIENT)
+  scoped_ptr<ChromeInterfaceFactory> interface_factory_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainPartsChromeos);
 };