Remove the checksum/HMAC code from the decryptor.

webkit/media/crypto/ppapi/cdm_wrapper.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 <cstring>  // For memcpy.
 #include <vector>
 
 #include "base/compiler_specific.h"  // For OVERRIDE.
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/pp_stdint.h"
@@ skipping 187 matching lines @@
 
   // TODO(xhwang): Simplify the following data conversion.
   cdm::InputBuffer input_buffer;
   input_buffer.data = reinterpret_cast<uint8_t*>(encrypted_buffer.data());
   input_buffer.data_size = encrypted_buffer.size();
   input_buffer.data_offset = encrypted_block_info.data_offset;
   input_buffer.key_id = encrypted_block_info.key_id;
   input_buffer.key_id_size = encrypted_block_info.key_id_size;
   input_buffer.iv = encrypted_block_info.iv;
   input_buffer.iv_size = encrypted_block_info.iv_size;
-  input_buffer.checksum = encrypted_block_info.checksum;
-  input_buffer.checksum_size = encrypted_block_info.checksum_size;
   input_buffer.num_subsamples = encrypted_block_info.num_subsamples;
 
   std::vector<cdm::SubsampleEntry> subsamples;
   if (encrypted_block_info.num_subsamples > 0) {
     subsamples.reserve(encrypted_block_info.num_subsamples);
 
     for (uint32_t i = 0; i < encrypted_block_info.num_subsamples; ++i) {
       subsamples.push_back(cdm::SubsampleEntry(
           encrypted_block_info.subsamples[i].clear_bytes,
           encrypted_block_info.subsamples[i].cipher_bytes));
@@ skipping 110 matching lines @@
 }  // namespace webkit_media
 
 namespace pp {
 
 // Factory function for your specialization of the Module object.
 Module* CreateModule() {
   return new webkit_media::MyModule();
 }
 
 }  // namespace pp