Consolidate javascript_dialog_manager.h and javascript_dialog_manager_impl.h

chrome/browser/devtools/devtools_sanity_browsertest.cc

Index: chrome/browser/devtools/devtools_sanity_browsertest.cc
diff --git a/chrome/browser/devtools/devtools_sanity_browsertest.cc b/chrome/browser/devtools/devtools_sanity_browsertest.cc
index de34cff612d937a38c36705f69f7951768b1de35..b0c8bf0cb53e254f340b2cbd8e7d94ce8b11d5dc 100644
--- a/chrome/browser/devtools/devtools_sanity_browsertest.cc
+++ b/chrome/browser/devtools/devtools_sanity_browsertest.cc
@@ -52,6 +52,9 @@
 #include "net/socket/tcp_listen_socket.h"
 #include "net/test/spawned_test_server/spawned_test_server.h"
 
+using app_modal::AppModalDialog;
+using app_modal::JavaScriptAppModalDialog;
+using app_modal::NativeAppModalDialog;
 using content::BrowserThread;
 using content::DevToolsAgentHost;
 using content::NavigationController;