Remove checksum in CDM interface and implementations.

webkit/media/crypto/ppapi/clear_key_cdm.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 "webkit/media/crypto/ppapi/clear_key_cdm.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/time.h"
 #include "media/base/decoder_buffer.h"
 
 static const char kClearKeyCdmVersion[] = "0.1.0.0";
 
 static scoped_refptr<media::DecoderBuffer> CopyDecoderBufferFrom(
     const cdm::InputBuffer& input_buffer) {
   scoped_refptr<media::DecoderBuffer> output_buffer =
       media::DecoderBuffer::CopyFrom(input_buffer.data, input_buffer.data_size);
 
   std::vector<media::SubsampleEntry> subsamples;
   for (uint32_t i = 0; i < input_buffer.num_subsamples; ++i) {
     media::SubsampleEntry subsample;
     subsample.clear_bytes = input_buffer.subsamples[i].clear_bytes;
     subsample.cypher_bytes = input_buffer.subsamples[i].cipher_bytes;
     subsamples.push_back(subsample);
   }
 
+  // TODO(xhwang): Update this code when checksum is removed in DecryptConfig.
   scoped_ptr<media::DecryptConfig> decrypt_config(new media::DecryptConfig(
       std::string(reinterpret_cast<const char*>(input_buffer.key_id),
                   input_buffer.key_id_size),
       std::string(reinterpret_cast<const char*>(input_buffer.iv),
                   input_buffer.iv_size),
-      std::string(reinterpret_cast<const char*>(input_buffer.checksum),
-                  input_buffer.checksum_size),
+      std::string(),
       input_buffer.data_offset,
       subsamples));
 
   output_buffer->SetDecryptConfig(decrypt_config.Pass());
   output_buffer->SetTimestamp(
       base::TimeDelta::FromMicroseconds(input_buffer.timestamp));
 
   return output_buffer;
 }
 
@@ skipping 185 matching lines @@
 
 void ClearKeyCdm::ResetVideoDecoder() {
   NOTIMPLEMENTED();
 }
 
 void ClearKeyCdm::StopVideoDecoder() {
   NOTIMPLEMENTED();
 }
 
 }  // namespace webkit_media