Create Pepper-based CDM for EME WD (Blink changes)

Source/modules/encryptedmedia/MediaKeysController.cpp

+// 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/encryptedmedia/MediaKeysController.h"
+
+#include "modules/encryptedmedia/MediaKeysClient.h"
+#include "public/platform/WebContentDecryptionModule.h"
+
+namespace WebCore {
+
+const char* MediaKeysController::supplementName()
+{
+    return "MediaKeysController";
+}
+
+MediaKeysController::MediaKeysController(MediaKeysClient* client)
+    : m_client(client)
+{
+}
+
+MediaKeysController::~MediaKeysController()
+{
+}
+
+PassOwnPtr<MediaKeysController> MediaKeysController::create(MediaKeysClient* client)
+{
+    return adoptPtr(new MediaKeysController(client));
+}
+
+PassOwnPtr<blink::WebContentDecryptionModule> MediaKeysController::createContentDecryptionModule(ExecutionContext* context, const String& keySystem)
+{
+    return m_client->createContentDecryptionModule(context, keySystem);
+}
+
+
+void provideMediaKeysTo(Page& page, MediaKeysClient* client)
+{
+    MediaKeysController::provideTo(page, MediaKeysController::supplementName(), MediaKeysController::create(client));
+}
+
+} // namespace WebCore
+