Implement Permissions.query() and static PermissionStatus.

Source/web/WebLocalFrameImpl.cpp

Index: Source/web/WebLocalFrameImpl.cpp
diff --git a/Source/web/WebLocalFrameImpl.cpp b/Source/web/WebLocalFrameImpl.cpp
index e6a1c2a2164163bece4edb9320396b058e828e01..b95b3bc6d2b16094cbcd7f90aa4d09f82a9b5e6c 100644
--- a/Source/web/WebLocalFrameImpl.cpp
+++ b/Source/web/WebLocalFrameImpl.cpp
@@ -152,6 +152,7 @@
 #include "modules/app_banner/AppBannerController.h"
 #include "modules/geolocation/GeolocationController.h"
 #include "modules/notifications/NotificationPermissionClient.h"
+#include "modules/permissions/PermissionController.h"
 #include "modules/presentation/PresentationController.h"
 #include "modules/push_messaging/PushController.h"
 #include "modules/screen_orientation/ScreenOrientationController.h"
@@ -1608,6 +1609,8 @@ void WebLocalFrameImpl::setCoreFrame(PassRefPtrWillBeRawPtr<LocalFrame> frame)
             ScreenOrientationController::provideTo(*m_frame, m_client ? m_client->webScreenOrientationClient() : nullptr);
         if (RuntimeEnabledFeatures::presentationEnabled())
             PresentationController::provideTo(*m_frame, m_client ? m_client->presentationClient() : nullptr);
+        if (RuntimeEnabledFeatures::permissionsEnabled())
+            PermissionController::provideTo(*m_frame, m_client ? m_client->permissionClient() : nullptr);
     }
 }