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 "core/frame/Navigator.h"
+#include "modules/encryptedmedia/MediaKeySystemOptions.h"
+#include "platform/Supplementable.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class NavigatorRequestMediaKeySystemAccess : 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 to convert a JavaScript object into a MediaKeySystemOptions

[ddorwin, 2014/10/23 18:02:31]

nit: How about this?
... needed by the generated code for Navigator to convert...

[jrummell, 2014/10/23 22:13:16]

Done.

+// object by the generated code for Navigator (when creating
+// Vector<MediaKeySystemOptions>). Since MediaKeySystemOptions is also
+// generated code, this is defined here so that it will be included by the
+// generated code.
+//
+// This needs to change if MediaKeySystemOptions.idl changes.
+
+MediaKeySystemOptions ConvertDictionaryIntoMediaKeySystemOptions(Dictionary&, ExceptionState&);
+
+template <>
+struct NativeValueTraits<MediaKeySystemOptions> {
+    static inline MediaKeySystemOptions nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate, ExceptionState& exceptionState)
+    {
+        Dictionary dictionary(value, isolate);
+        return ConvertDictionaryIntoMediaKeySystemOptions(dictionary, exceptionState);
+    }
+};
+
+} // namespace blink
+
+#endif // NavigatorRequestMediaKeySystemAccess_h