Re-design Unsubscribe and getPermissionStatus mojo interfaces.

third_party/WebKit/Source/modules/push_messaging/PushError.cpp

Index: third_party/WebKit/Source/modules/push_messaging/PushError.cpp
diff --git a/third_party/WebKit/Source/modules/push_messaging/PushError.cpp b/third_party/WebKit/Source/modules/push_messaging/PushError.cpp
index 7d7dc8996ef5b198cd6bd76e9669f6ff1ed93279..29cb1f24d1d57333a1e6cf94b650cbc2d9de496f 100644
--- a/third_party/WebKit/Source/modules/push_messaging/PushError.cpp
+++ b/third_party/WebKit/Source/modules/push_messaging/PushError.cpp
@@ -19,14 +19,15 @@ DOMException* PushError::take(ScriptPromiseResolver*,
       return DOMException::create(InvalidStateError, webError.message);
     case WebPushError::ErrorTypeNetwork:
       return DOMException::create(NetworkError, webError.message);
+    case WebPushError::ErrorTypeNone:
+      NOTREACHED();
+      return DOMException::create(UnknownError);

[Peter Beverloo, 2017/02/27 09:32:50]

nit: just stick webError.message in there too, even though we should never reach
that code.

[ke.he, 2017/02/28 05:00:50]

Done.

     case WebPushError::ErrorTypeNotAllowed:
       return DOMException::create(NotAllowedError, webError.message);
     case WebPushError::ErrorTypeNotFound:
       return DOMException::create(NotFoundError, webError.message);
     case WebPushError::ErrorTypeNotSupported:
       return DOMException::create(NotSupportedError, webError.message);
-    case WebPushError::ErrorTypeUnknown:
-      return DOMException::create(UnknownError, webError.message);
   }
   NOTREACHED();
   return DOMException::create(UnknownError);