Implement navigator.requestMediaKeySystemAccess()

Source/modules/encryptedmedia/NavigatorRequestMediaKeySystemAccess.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 NavigatorRequestMediaKeySystemAccess_h
+#define NavigatorRequestMediaKeySystemAccess_h
+
+#include "bindings/core/v8/Dictionary.h"
+#include "bindings/core/v8/ScriptPromise.h"
+#include "bindings/core/v8/V8Binding.h"
+#include "bindings/modules/v8/V8MediaKeySystemOptions.h"
+#include "core/frame/Navigator.h"
+#include "modules/encryptedmedia/MediaKeySystemOptions.h"
+#include "platform/Supplementable.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class NavigatorRequestMediaKeySystemAccess final : public NoBaseWillBeGarbageCollected<NavigatorRequestMediaKeySystemAccess>, public WillBeHeapSupplement<Navigator> {
+public:
+    virtual ~NavigatorRequestMediaKeySystemAccess();
+
+    static NavigatorRequestMediaKeySystemAccess& from(Navigator&);
+
+    static ScriptPromise requestMediaKeySystemAccess(
+        ScriptState*,
+        Navigator&,
+        const String& keySystem);
+    static ScriptPromise requestMediaKeySystemAccess(
+        ScriptState*,
+        Navigator&,
+        const String& keySystem,
+        const Vector<MediaKeySystemOptions>& supportedConfigurations);
+
+    ScriptPromise requestMediaKeySystemAccess(
+        ScriptState*,
+        const String& keySystem,
+        const Vector<MediaKeySystemOptions>& supportedConfigurations);
+
+    virtual void trace(Visitor*) override;
+
+private:
+    NavigatorRequestMediaKeySystemAccess();
+    static const char* supplementName();
+};
+
+// This is needed by the generated code for Navigator to convert a JavaScript
+// object into a MediaKeySystemOptions object.
+template <>
+struct NativeValueTraits<MediaKeySystemOptions> {
+    static inline MediaKeySystemOptions nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate, ExceptionState& exceptionState)
+    {
+        MediaKeySystemOptions impl;
+        V8MediaKeySystemOptions::toImpl(isolate, value, impl, exceptionState);
+        return impl;
+    }
+};
+
+} // namespace blink
+
+#endif // NavigatorRequestMediaKeySystemAccess_h