Fix resource leaks in CDM implementation.

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 83 matching lines @@
 
 
 PP_Bool Decrypt(PP_Instance instance,
                 PP_Resource encrypted_resource,
                 const PP_EncryptedBlockInfo* encrypted_block_info) {
   void* object =
       Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
   if (!object)
     return PP_FALSE;
 
-  pp::Buffer_Dev encrypted_block(encrypted_resource);
+  pp::Buffer_Dev encrypted_block(pp::PassRef(), encrypted_resource);
 
   return PP_FromBool(
       static_cast<ContentDecryptor_Private*>(object)->Decrypt(
           encrypted_block,
           *encrypted_block_info));
 }
 
 PP_Bool DecryptAndDecode(PP_Instance instance,
                          PP_Resource encrypted_resource,
                          const PP_EncryptedBlockInfo* encrypted_block_info) {
   void* object =
       Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
   if (!object)
     return PP_FALSE;
 
-  pp::Buffer_Dev encrypted_block(encrypted_resource);
+  pp::Buffer_Dev encrypted_block(pp::PassRef(), encrypted_resource);
 
   return PP_FromBool(
       static_cast<ContentDecryptor_Private*>(object)->DecryptAndDecode(
           encrypted_block,
           *encrypted_block_info));
 }
 
 const PPP_ContentDecryptor_Private ppp_content_decryptor = {
   &GenerateKeyRequest,
   &AddKey,
@@ skipping 109 matching lines @@
     const PP_DecryptedBlockInfo& decrypted_block_info) {
   if (has_interface<PPB_ContentDecryptor_Private>()) {
     get_interface<PPB_ContentDecryptor_Private>()->DeliverSamples(
         associated_instance_.pp_instance(),
         decrypted_samples.pp_resource(),
         &decrypted_block_info);
   }
 }
 
 }  // namespace pp