Stub implementation of Permissions API module.

Source/modules/permissions/Permissions.cpp

Index: Source/modules/permissions/Permissions.cpp
diff --git a/Source/modules/permissions/Permissions.cpp b/Source/modules/permissions/Permissions.cpp
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index 0000000000000000000000000000000000000000..b3498338371ab9f3dc111e6169ecf7b2f6fa2ea4
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+++ b/Source/modules/permissions/Permissions.cpp
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+// 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.
+
+#include "config.h"
+#include "modules/permissions/Permissions.h"
+
+#include "bindings/core/v8/ScriptPromise.h"
+#include "core/dom/DOMException.h"
+#include "core/dom/ExceptionCode.h"
+
+namespace blink {
+
+Permissions::~Permissions()
+{
+}
+
+void Permissions::trace(Visitor*)
+{
+}
+
+// static
+ScriptPromise Permissions::query(ScriptState* scriptState, const AtomicString& permissionName)
+{
+    // FIXME: implement.
+    return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError, "Feature not yet supported."));
+}
+
+} // namespace blink