Credential Manager: Add platform-exposed Credential objects.

public/platform/WebCredential.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 WebCredential_h
+#define WebCredential_h
+
+#include "WebCommon.h"
+#include "WebPrivatePtr.h"
+#include "WebString.h"
+
+namespace blink {
+
+class PlatformCredential;
+
+class WebCredential {
+public:
+    BLINK_PLATFORM_EXPORT WebCredential(const WebString& id, const WebString& name, const WebString& avatarURL);
+    ~WebCredential() { reset(); }
+
+    BLINK_PLATFORM_EXPORT void assign(const WebCredential&);
+    BLINK_PLATFORM_EXPORT void reset();
+
+    BLINK_PLATFORM_EXPORT WebString id() const;
+    BLINK_PLATFORM_EXPORT WebString name() const;
+    BLINK_PLATFORM_EXPORT WebString avatarURL() const;
+
+protected:
+    BLINK_PLATFORM_EXPORT explicit WebCredential(PlatformCredential*);
+    WebPrivatePtr<PlatformCredential> m_platformCredential;
+};
+
+} // namespace blink
+
+#endif // WebCredential_h