DO NOT REVIEW Bindings and plumbing for push messaging API.

public/platform/WebPushMessagingError.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WebPushMessagingError_h
+#define WebPushMessagingError_h
+
+#include "WebString.h"
+
+namespace blink {
+
+struct WebPushMessagingError {
+    enum ErrorType {
+        AbortError = 0,
+        UnknownError,
+        ErrorTypeLast = UnknownError

[Peter Beverloo, 2014/03/10 13:59:28]

ErrorTypeLast isn't used anywhere, what do we need it for?

+    };
+
+    WebPushMessagingError(ErrorType errorType, const WebString& message)
+        : errorType(errorType)
+        , message(message)
+    {
+    }
+
+    ErrorType errorType;
+    WebString message;
+};
+
+} // namespace blink
+
+#endif // WebPushMessagingError_h