Allow widevinecdmadapter to be built in Chromium

media/cdm/ppapi/stub/stub_cdm.h

+// Copyright 2015 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 MEDIA_CDM_PPAPI_STUB_STUB_CDM_H_
+#define MEDIA_CDM_PPAPI_STUB_STUB_CDM_H_

[xhwang, 2015/03/30 17:23:50]

ddorwin/jrummell:

Actually "external_clear_key" and "stub_cdm" have nothing to do with ppapi. The
"ppapi" part is handled by cdm adapter etc. How about we put
"external_clear_key" and "stub_cdm" under media/cdm, instead of media/cdm/ppapi?
Imagine in the future we could have a mojo service loading and using the CDM,
which has nothing to do with ppapi.

The same for media/cdm/ppapi/api/*.

[jrummell, 2015/04/01 23:37:36]

Moved stub to cdm/. external_clear_key can move later.

+
+#include "base/basictypes.h"
+#include "media/cdm/ppapi/api/content_decryption_module.h"
+
+namespace media {
+
+typedef cdm::ContentDecryptionModule_8 StubCdmInterface;
+
+// Dummy implementation of the cdm::ContentDecryptionModule interface.
+class StubCdm : public StubCdmInterface {
+ public:
+  StubCdm(Host* host);

[xhwang, 2015/03/30 17:23:50]

explicit

[jrummell, 2015/04/01 23:37:36]

Done.

+  ~StubCdm() override;
+
+  // ContentDecryptionModule implementation.

[xhwang, 2015/03/30 17:23:50]

s/CDM/StubCdmInterface/

[jrummell, 2015/04/01 23:37:36]

Done.

+  void Initialize(bool allow_distinctive_identifier,
+                  bool allow_persistent_state) override;
+  void CreateSessionAndGenerateRequest(uint32 promise_id,
+                                       cdm::SessionType session_type,
+                                       cdm::InitDataType init_data_type,
+                                       const uint8* init_data,
+                                       uint32 init_data_size) override;
+  void LoadSession(uint32 promise_id,
+                   cdm::SessionType session_type,
+                   const char* session_id,
+                   uint32_t session_id_length) override;
+  void UpdateSession(uint32 promise_id,
+                     const char* session_id,
+                     uint32_t session_id_length,
+                     const uint8* response,
+                     uint32 response_size) override;
+  void CloseSession(uint32 promise_id,
+                    const char* session_id,
+                    uint32_t session_id_length) override;
+  void RemoveSession(uint32 promise_id,
+                     const char* session_id,
+                     uint32_t session_id_length) override;
+  void SetServerCertificate(uint32 promise_id,
+                            const uint8_t* server_certificate_data,
+                            uint32_t server_certificate_data_size) override;
+  void TimerExpired(void* context) override;
+  cdm::Status Decrypt(const cdm::InputBuffer& encrypted_buffer,
+                      cdm::DecryptedBlock* decrypted_block) override;
+  cdm::Status InitializeAudioDecoder(
+      const cdm::AudioDecoderConfig& audio_decoder_config) override;
+  cdm::Status InitializeVideoDecoder(
+      const cdm::VideoDecoderConfig& video_decoder_config) override;
+  void DeinitializeDecoder(cdm::StreamType decoder_type) override;
+  void ResetDecoder(cdm::StreamType decoder_type) override;
+  cdm::Status DecryptAndDecodeFrame(const cdm::InputBuffer& encrypted_buffer,
+                                    cdm::VideoFrame* video_frame) override;
+  cdm::Status DecryptAndDecodeSamples(const cdm::InputBuffer& encrypted_buffer,
+                                      cdm::AudioFrames* audio_frames) override;
+  void Destroy() override;
+  void OnPlatformChallengeResponse(
+      const cdm::PlatformChallengeResponse& response) override;
+  void OnQueryOutputProtectionStatus(cdm::QueryResult result,
+                                     uint32_t link_mask,
+                                     uint32_t output_protection_mask) override;
+
+ private:
+  void FailRequest(uint32 promise_id);

[xhwang, 2015/03/30 17:23:50]

Add comment.

[jrummell, 2015/04/01 23:37:36]

Done.

+
+  Host* host_;
+
+  DISALLOW_COPY_AND_ASSIGN(StubCdm);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_CDM_PPAPI_STUB_STUB_CDM_H_