Revert of (reland) Move permission.mojom from WebKit/public/platform/ to components/

third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h

Index: third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h
diff --git a/third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h b/third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h
index 064459c8e87629acb212d28c60244b0868103ef1..1e6ced998917d81643b2eb59103767b23398ac53 100644
--- a/third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h
+++ b/third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h
@@ -13,13 +13,11 @@
 #include <memory>
 #include <stdint.h>
 
-namespace permissions {
+namespace blink {
+
 namespace mojom {
 enum class PermissionStatus;
 }
-}
-
-namespace blink {
 
 class WebNotificationDelegate;
 class WebSecurityOrigin;
@@ -64,7 +62,7 @@
     virtual void notifyDelegateDestroyed(WebNotificationDelegate*) = 0;
 
     // Synchronously checks the permission level for the given origin.
-    virtual permissions::mojom::PermissionStatus checkPermission(const WebSecurityOrigin&) = 0;
+    virtual mojom::PermissionStatus checkPermission(const WebSecurityOrigin&) = 0;
 };
 
 } // namespace blink