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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.
#ifndef CONTENT_RENDERER_MEDIA_RENDER_MEDIA_CLIENT_H_
#define CONTENT_RENDERER_MEDIA_RENDER_MEDIA_CLIENT_H_
#include "base/lazy_instance.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/threading/thread_checker.h"
#include "base/time/tick_clock.h"
#include "base/time/time.h"
#include "content/common/content_export.h"
#include "media/base/media_client.h"
#include "widevine_cdm_version.h" // In SHARED_INTERMEDIATE_DIR.
namespace content {
class CONTENT_EXPORT RenderMediaClient : public media::MediaClient {
public:
// Initialize RenderMediaClient and SetMediaClient(). Note that the instance
// is not exposed because no content code needs to directly access it.
static void Initialize();
// MediaClient implementation.
void AddKeySystemsInfoForUMA(
std::vector<media::KeySystemInfoForUMA>* key_systems_info_for_uma) final;
bool IsKeySystemsUpdateNeeded() final;
void AddSupportedKeySystems(
std::vector<media::KeySystemInfo>* key_systems_info) final;
void RecordRapporURL(const std::string& metric, const GURL& url) final;
void SetTickClockForTesting(scoped_ptr<base::TickClock> tick_clock);
private:
friend struct base::DefaultLazyInstanceTraits<RenderMediaClient>;
RenderMediaClient();
~RenderMediaClient() override;
// Makes sure all methods are called from the same thread.
base::ThreadChecker thread_checker_;
// Whether AddSupportedKeySystems() has ever been called.
bool has_updated_;
// Whether a future update is needed. For example, when some potentially
// supported key systems are NOT supported yet. This could happen when the
// required component for a key system is not yet available.
bool is_update_needed_;
base::TimeTicks last_update_time_ticks_;
scoped_ptr<base::TickClock> tick_clock_;
DISALLOW_COPY_AND_ASSIGN(RenderMediaClient);
};
#if defined(UNIT_TEST)
// Helper function to access the RenderMediaClient instance. Used only by unit
// tests.
CONTENT_EXPORT RenderMediaClient* GetRenderMediaClientInstanceForTesting();
#endif
} // namespace content
#endif // CONTENT_RENDERER_MEDIA_RENDER_MEDIA_CLIENT_H_
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