Add WebAuthn bindings and client interface.

third_party/WebKit/Source/modules/webauthentication/WebAuthnAttestation.h

Index: third_party/WebKit/Source/modules/webauthentication/WebAuthnAttestation.h
diff --git a/third_party/WebKit/Source/modules/webauthentication/WebAuthnAttestation.h b/third_party/WebKit/Source/modules/webauthentication/WebAuthnAttestation.h
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+// Copyright 2016 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 WebAuthnAttestation_h
+#define WebAuthnAttestation_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "core/dom/DOMArrayBuffer.h"
+
+namespace blink {
+
+class WebAuthnAttestation final
+    : public GarbageCollectedFinalized<WebAuthnAttestation>,
+      public ScriptWrappable {
+  DEFINE_WRAPPERTYPEINFO();
+
+ public:
+  static WebAuthnAttestation* create(const String& format,
+                                     DOMArrayBuffer* clientData,
+                                     DOMArrayBuffer* authenticatorData,
+                                     ScriptValue attestation) {
+    return new WebAuthnAttestation(format, clientData, authenticatorData,
+                                   attestation);
+  }
+
+  explicit WebAuthnAttestation(const String& format,
+                               DOMArrayBuffer* clientData,
+                               DOMArrayBuffer* authenticatorData,
+                               ScriptValue attestation)
+      : m_format(format),
+        m_clientData(clientData),
+        m_authenticatorData(authenticatorData),
+        m_attestation(attestation) {}
+
+  virtual ~WebAuthnAttestation() {}
+
+  const String format() const { return m_format; }
+  DOMArrayBuffer* clientData() const { return m_clientData.get(); }
+  DOMArrayBuffer* authenticatorData() const {
+    return m_authenticatorData.get();
+  }
+  ScriptValue attestation() const { return m_attestation; }
+
+  DEFINE_INLINE_TRACE() {
+    visitor->trace(m_clientData);
+    visitor->trace(m_authenticatorData);
+  }
+
+ private:
+  const String m_format;
+  const Member<DOMArrayBuffer> m_clientData;
+  const Member<DOMArrayBuffer> m_authenticatorData;
+  const ScriptValue m_attestation;
+};
+
+}  // namespace blink
+
+#endif  // WebAuthnAttestation_h