Support LoadSession() in MediaKeys and PPP_ContentDecryptor_Private interface.

content/renderer/pepper/content_decryptor_delegate.cc

Index: content/renderer/pepper/content_decryptor_delegate.cc
diff --git a/content/renderer/pepper/content_decryptor_delegate.cc b/content/renderer/pepper/content_decryptor_delegate.cc
index 26873ef9a9cdff7250cf19b0b140362f1f9b0a1a..37a9e7af63ecc3fe05c2ea66e798daa9aafcf1c1 100644
--- a/content/renderer/pepper/content_decryptor_delegate.cc
+++ b/content/renderer/pepper/content_decryptor_delegate.cc
@@ -286,17 +286,25 @@ void ContentDecryptorDelegate::InstanceCrashed() {
 }
 
 bool ContentDecryptorDelegate::CreateSession(uint32 session_id,
-                                             const std::string& type,
+                                             const std::string& content_type,
                                              const uint8* init_data,
                                              int init_data_length) {
   PP_Var init_data_array =
       PpapiGlobals::Get()->GetVarTracker()->MakeArrayBufferPPVar(
           init_data_length, init_data);
 
-  plugin_decryption_interface_->CreateSession(pp_instance_,
-                                              session_id,
-                                              StringVar::StringToPPVar(type),
-                                              init_data_array);
+  plugin_decryption_interface_->CreateSession(
+      pp_instance_,
+      session_id,
+      StringVar::StringToPPVar(content_type),
+      init_data_array);
+  return true;
+}
+
+bool ContentDecryptorDelegate::LoadSession(uint32 session_id,
+                                           const std::string& web_session_id) {
+  plugin_decryption_interface_->LoadSession(
+      pp_instance_, session_id, StringVar::StringToPPVar(web_session_id));
   return true;
 }