media/blink/webencryptedmediaclient_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_BLINK_WEBENCRYPTEDMEDIACLIENT_IMPL_H_
   6 #define MEDIA_BLINK_WEBENCRYPTEDMEDIACLIENT_IMPL_H_
   7
   8 #include <string>
   9
  10 #include "base/containers/scoped_ptr_hash_map.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "media/base/cdm_factory.h"
  14 #include "media/base/media_export.h"
  15 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleResult.h"
  16 #include "third_party/WebKit/public/platform/WebEncryptedMediaClient.h"
  17 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
  18
  19 namespace media {
  20
  21 class MediaPermission;
  22
  23 class MEDIA_EXPORT WebEncryptedMediaClientImpl
  24     : public blink::WebEncryptedMediaClient {
  25  public:
  26   WebEncryptedMediaClientImpl(scoped_ptr<CdmFactory> cdm_factory,
  27                               MediaPermission* media_permission);
  28   virtual ~WebEncryptedMediaClientImpl();
  29
  30   // WebEncryptedMediaClient implementation.
  31   virtual void requestMediaKeySystemAccess(
  32       blink::WebEncryptedMediaRequest request);
  33
  34   // Create the CDM for |key_system| and |security_origin|. The caller owns
  35   // the created cdm (passed back using |result|).
  36   void CreateCdm(const blink::WebString& key_system,
  37                  const blink::WebSecurityOrigin& security_origin,
  38                  blink::WebContentDecryptionModuleResult result);
  39
  40  private:
  41   // Report usage of key system to UMA. There are 2 different counts logged:
  42   // 1. The key system is requested.
  43   // 2. The requested key system and options are supported.
  44   // Each stat is only reported once per renderer frame per key system.
  45   class Reporter;
  46
  47   // Gets the Reporter for |key_system|. If it doesn't already exist,
  48   // create one.
  49   Reporter* GetReporter(const std::string& key_system);
  50
  51   // Key system <-> Reporter map.
  52   typedef base::ScopedPtrHashMap<std::string, Reporter> Reporters;
  53   Reporters reporters_;
  54
  55   scoped_ptr<CdmFactory> cdm_factory_;
  56
  57   base::WeakPtrFactory<WebEncryptedMediaClientImpl> weak_factory_;
  58 };
  59
  60 }  // namespace media
  61
  62 #endif  // MEDIA_BLINK_WEBENCRYPTEDMEDIACLIENT_IMPL_H_