Drop DecryptConfig::data_offset_.

media/cdm/ppapi/external_clear_key/clear_key_cdm.cc

 // Copyright 2013 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 "media/cdm/ppapi/external_clear_key/clear_key_cdm.h"
 
 #include <algorithm>
 #include <sstream>
 #include <string>
 #include <vector>
@@ skipping 67 matching lines @@
 
 // Copies |input_buffer| into a media::DecoderBuffer. If the |input_buffer| is
 // empty, an empty (end-of-stream) media::DecoderBuffer is returned.
 static scoped_refptr<media::DecoderBuffer> CopyDecoderBufferFrom(
     const cdm::InputBuffer& input_buffer) {
   if (!input_buffer.data) {
     DCHECK(!input_buffer.data_size);
     return media::DecoderBuffer::CreateEOSBuffer();
   }
 
-  // TODO(tomfinegan): Get rid of this copy.
+  // TODO(xhwang): Get rid of this copy.
   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);
   }
 
+  DCHECK_EQ(input_buffer.data_offset, 0u);
   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),
-      input_buffer.data_offset,
       subsamples));
 
   output_buffer->set_decrypt_config(decrypt_config.Pass());
   output_buffer->set_timestamp(
       base::TimeDelta::FromMicroseconds(input_buffer.timestamp));
 
   return output_buffer;
 }
 
 static std::string GetFileIOTestResultMessage(bool success) {
@@ skipping 464 matching lines @@
 
 void ClearKeyCdm::OnFileIOTestComplete(bool success) {
   DVLOG(1) << __FUNCTION__ << ": " << success;
   std::string message = GetFileIOTestResultMessage(success);
   host_->OnSessionMessage(
       last_session_id_, message.data(), message.size(), NULL, 0);
   file_io_test_runner_.reset();
 }
 
 }  // namespace media