Consolidate javascript_dialog_manager.h and javascript_dialog_manager_impl.h

chrome/browser/chromeos/login/signin/oauth2_browsertest.cc

Index: chrome/browser/chromeos/login/signin/oauth2_browsertest.cc
diff --git a/chrome/browser/chromeos/login/signin/oauth2_browsertest.cc b/chrome/browser/chromeos/login/signin/oauth2_browsertest.cc
index 8006b3e2f11b90f587a0c702b4a6ff950157f09d..b7776ce8602ccf75ca5dab8c143885a994b9bab3 100644
--- a/chrome/browser/chromeos/login/signin/oauth2_browsertest.cc
+++ b/chrome/browser/chromeos/login/signin/oauth2_browsertest.cc
@@ -46,6 +46,8 @@
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_getter.h"
 
+using app_modal_dialogs::AppModalDialog;
+using app_modal_dialogs::JavaScriptAppModalDialog;
 using net::test_server::BasicHttpResponse;
 using net::test_server::HttpRequest;
 using net::test_server::HttpResponse;