Move EME code out of WebMediaPlayerImpl.

content/renderer/media/crypto/encrypted_media_player_support.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 CONTENT_RENDERER_MEDIA_CRYPTO_ENCRYPTED_MEDIA_PLAYER_SUPPORT_H_
+#define CONTENT_RENDERER_MEDIA_CRYPTO_ENCRYPTED_MEDIA_PLAYER_SUPPORT_H_
+
+#include "media/base/decryptor.h"
+#include "media/base/demuxer.h"
+#include "third_party/WebKit/public/platform/WebMediaPlayer.h"
+
+namespace blink {
+class WebContentDecryptionModule;
+class WebContentDecryptionModuleResult;
+class WebLocalFrame;
+class WebMediaPlayerClient;
+class WebString;
+}
+
+namespace content {
+
+class EncryptedMediaPlayerSupport {
+ public:
+  // Creates a new instance of EncryptedMediaPlayerSupport for |client|. This
+  // method must always return a valid pointer.
+  static scoped_ptr<EncryptedMediaPlayerSupport> create(

[xhwang, 2014/08/23 00:31:57]

s/create/Create

[acolwell GONE FROM CHROMIUM, 2014/08/25 18:10:43]

Done.

+      blink::WebMediaPlayerClient* client);
+
+  EncryptedMediaPlayerSupport() { }
+  virtual ~EncryptedMediaPlayerSupport();
+
+  // Prefixed API methods.
+  virtual blink::WebMediaPlayer::MediaKeyException GenerateKeyRequest(
+      blink::WebLocalFrame* frame,
+      const blink::WebString& key_system,
+      const unsigned char* init_data,
+      unsigned init_data_length) = 0;
+
+  virtual blink::WebMediaPlayer::MediaKeyException AddKey(
+      const blink::WebString& key_system,
+      const unsigned char* key,
+      unsigned key_length,
+      const unsigned char* init_data,
+      unsigned init_data_length,
+      const blink::WebString& session_id) = 0;
+
+  virtual blink::WebMediaPlayer::MediaKeyException CancelKeyRequest(
+      const blink::WebString& key_system,
+      const blink::WebString& session_id) = 0;
+
+
+  // Unprefixed API methods.
+  virtual void SetContentDecryptionModule(
+      blink::WebContentDecryptionModule* cdm) = 0;
+  virtual void SetContentDecryptionModule(
+      blink::WebContentDecryptionModule* cdm,
+      blink::WebContentDecryptionModuleResult result) = 0;
+  virtual void SetContentDecryptionModuleSync(
+      blink::WebContentDecryptionModule* cdm) = 0;

[xhwang, 2014/08/23 00:31:57]

For your info, later on when prefixed EME is deprecated, we can let Pipeline or
Rendeer own this class to help solve https://crbug.com/401264.

[acolwell GONE FROM CHROMIUM, 2014/08/25 18:10:43]

Acknowledged.

+
+
+  // Callback factory and notification methods used by WebMediaPlayerImpl.
+
+  // Creates a callback that Demuxers can use to signal that the content
+  // requires a key. This method make sure the callback returned can be safely
+  // invoked from any thread.
+  virtual media::Demuxer::NeedKeyCB CreateNeedKeyCB() = 0;
+
+  // Creates a callback that renderers can use to set decryptor
+  // ready callback. This method make sure the callback returned can be safely
+  // invoked from any thread.
+  virtual media::SetDecryptorReadyCB CreateSetDecryptorReadyCB() = 0;
+
+  // Called to inform this object that the media pipeline encountered
+  // and handled a decryption error.
+  virtual void OnPipelineDecryptError() = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(EncryptedMediaPlayerSupport);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_MEDIA_CRYPTO_ENCRYPTED_MEDIA_PLAYER_SUPPORT_H_