Support LoadSession() in MediaKeys and PPP_ContentDecryptor_Private interface.

ppapi/cpp/private/content_decryptor_private.cc

 // Copyright (c) 2012 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.
 
 #include "ppapi/cpp/private/content_decryptor_private.h"
 
 #include <cstring>  // memcpy
 
 #include "ppapi/c/ppb_var.h"
 #include "ppapi/c/private/ppb_content_decryptor_private.h"
@@ skipping 42 matching lines @@
 
   pp::Var init_data_var(pp::PASS_REF, init_data_arg);
   if (!init_data_var.is_array_buffer())
     return;
   pp::VarArrayBuffer init_data_array_buffer(init_data_var);
 
   static_cast<ContentDecryptor_Private*>(object)
       ->CreateSession(session_id, type_var.AsString(), init_data_array_buffer);
 }
 
+void LoadSession(PP_Instance instance,
+                 uint32_t session_id,
+                 PP_Var web_session_id_arg) {
+  void* object =
+      Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
+  if (!object)
+    return;
+
+  pp::Var web_session_id_var(pp::PASS_REF, web_session_id_arg);
+  if (!web_session_id_var.is_string())
+    return;
+
+  static_cast<ContentDecryptor_Private*>(object)
+      ->LoadSession(session_id, web_session_id_var.AsString());
+}
+
 void UpdateSession(PP_Instance instance,
                    uint32_t session_id,
                    PP_Var response_arg) {
   void* object =
       Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
   if (!object)
     return;
 
   pp::Var response_var(pp::PASS_REF, response_arg);
   if (!response_var.is_array_buffer())
@@ skipping 97 matching lines @@
 
   static_cast<ContentDecryptor_Private*>(object)->DecryptAndDecode(
       decoder_type,
       encrypted_buffer,
       *encrypted_block_info);
 }
 
 const PPP_ContentDecryptor_Private ppp_content_decryptor = {
   &Initialize,
   &CreateSession,
+  &LoadSession,
   &UpdateSession,
   &ReleaseSession,
   &Decrypt,
   &InitializeAudioDecoder,
   &InitializeVideoDecoder,
   &DeinitializeDecoder,
   &ResetDecoder,
   &DecryptAndDecode
 };
 
@@ skipping 129 matching lines @@
     const PP_DecryptedSampleInfo& decrypted_sample_info) {
   if (has_interface<PPB_ContentDecryptor_Private>()) {
     get_interface<PPB_ContentDecryptor_Private>()->DeliverSamples(
         associated_instance_.pp_instance(),
         audio_frames.pp_resource(),
         &decrypted_sample_info);
   }
 }
 
 }  // namespace pp