MediaSourcePlayer implements IsTypeSupported().

media/base/android/media_drm_bridge.h

 // Copyright (c) 2013 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_BASE_ANDROID_MEDIA_DRM_BRIDGE_H_
 #define MEDIA_BASE_ANDROID_MEDIA_DRM_BRIDGE_H_
 
 #include <jni.h>
 #include <string>
 #include <vector>
@@ skipping 21 matching lines @@
 
   // Returns a MediaDrmBridge instance if |scheme_uuid| is supported, or a NULL
   // pointer otherwise.
   static MediaDrmBridge* Create(int media_keys_id,
                                 const std::vector<uint8>& scheme_uuid,
                                 MediaPlayerManager* manager);
 
   // Checks whether MediaDRM is available.
   static bool IsAvailable();
 
+  static bool IsCryptoSchemeSupported(const std::vector<uint8>& scheme_uuid,
+                                      const std::string& container_mime_type);
+
+  static bool IsSecureDecoderRequired(const std::string& security_level_str);
+
   static bool RegisterMediaDrmBridge(JNIEnv* env);
 
   // MediaKeys implementations.
   virtual bool GenerateKeyRequest(const std::string& type,
                                   const uint8* init_data,
                                   int init_data_length) OVERRIDE;
   virtual void AddKey(const uint8* key, int key_length,
                       const uint8* init_data, int init_data_length,
                       const std::string& session_id) OVERRIDE;
   virtual void CancelKeyRequest(const std::string& session_id) OVERRIDE;
@@ skipping 19 matching lines @@
   // Called when error happens.
   void OnKeyError(JNIEnv* env, jobject, jstring j_session_id);
 
   // Helper function to determine whether a protected surface is needed for the
   // video playback.
   bool IsProtectedSurfaceRequired();
 
   int media_keys_id() const { return media_keys_id_; }
 
  private:
+  static bool IsSecureDecoderRequired(SecurityLevel security_level);
+
   MediaDrmBridge(int media_keys_id,
                  const std::vector<uint8>& scheme_uuid,
                  MediaPlayerManager* manager);
 
   // Get the security level of the media.
   SecurityLevel GetSecurityLevel();
 
   // ID of the MediaKeys object.
   int media_keys_id_;
 
   // UUID of the key system.
   std::vector<uint8> scheme_uuid_;
 
   // Java MediaDrm instance.
   base::android::ScopedJavaGlobalRef<jobject> j_media_drm_;
 
   // Non-owned pointer.
   MediaPlayerManager* manager_;
 
   base::Closure media_crypto_ready_cb_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaDrmBridge);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_ANDROID_MEDIA_DRM_BRIDGE_H_