Support LoadSession() in MediaKeys and PPP_ContentDecryptor_Private interface.

media/cdm/aes_decryptor.h

Index: media/cdm/aes_decryptor.h
diff --git a/media/cdm/aes_decryptor.h b/media/cdm/aes_decryptor.h
index ac45e68aa9cb1155a2cc11a9c4f2b6dcaa2f6fb9..e2462ca7a9793919ed8031803dab15ce947505d0 100644
--- a/media/cdm/aes_decryptor.h
+++ b/media/cdm/aes_decryptor.h
@@ -36,9 +36,11 @@ class MEDIA_EXPORT AesDecryptor : public MediaKeys, public Decryptor {
 
   // MediaKeys implementation.
   virtual bool CreateSession(uint32 session_id,
-                             const std::string& type,
+                             const std::string& content_type,
                              const uint8* init_data,
                              int init_data_length) OVERRIDE;
+  virtual void LoadSession(uint32 session_id,
+                           const std::string& web_session_id) OVERRIDE;
   virtual void UpdateSession(uint32 session_id,
                              const uint8* response,
                              int response_length) OVERRIDE;