arc: Implement uninstall confirmation dialog for Arc app.

chrome/browser/chromeos/profiles/profile_helper.h

Index: chrome/browser/chromeos/profiles/profile_helper.h
diff --git a/chrome/browser/chromeos/profiles/profile_helper.h b/chrome/browser/chromeos/profiles/profile_helper.h
index e987403d705bdece444121e1722ab6203d273768..fceb15d3e8e8df3f4dccb6f93cf85f8b51902501 100644
--- a/chrome/browser/chromeos/profiles/profile_helper.h
+++ b/chrome/browser/chromeos/profiles/profile_helper.h
@@ -31,6 +31,7 @@ class ExtensionGarbageCollectorChromeOSUnitTest;
 
 namespace arc {
 class SyncArcPackageHelper;
+class ArcAppUninstallDialogViewBrowserTest;
 }
 
 namespace ash {
@@ -164,6 +165,7 @@ class ProfileHelper
   friend class ProfileListChromeOSTest;
   friend class SessionStateDelegateChromeOSTest;
   friend class SystemTrayDelegateChromeOSTest;
+  friend class arc::ArcAppUninstallDialogViewBrowserTest;
   friend class arc::SyncArcPackageHelper;
   friend class ash::test::MultiUserWindowManagerChromeOSTest;
   friend class ::ArcAppTest;