Credential manager: Introduce platform interface.

public/platform/WebCredentialManagerError.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 WebCredentialManagerError_h
+#define WebCredentialManagerError_h
+
+#include "WebString.h"

[tkent, 2014/08/11 08:43:50]

should be "public/platform/WebString.h"

[Mike West, 2014/08/11 09:13:41]

Done.

+
+namespace blink {
+
+struct WebCredentialManagerError {
+    enum ErrorType {
+        DisabledErrorType = 0,
+        UnknownErrorType,
+        LastErrorType = UnknownErrorType
+    };
+
+    WebCredentialManagerError(ErrorType type, WebString message)
+        : errorType(type)
+        , errorMessage(message)
+    {
+    }
+
+    ErrorType errorType;
+    WebString errorMessage;
+};
+
+} // namespace blink
+
+#endif