Remove MediaFormat once and for all.

media/filters/file_data_source.cc

 // Copyright (c) 2011 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 <limits>
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
 #include "media/base/filter_host.h"
@@ skipping 19 matching lines @@
 #else
   FilePath file_path(url);
 #endif
   if (file_util::GetFileSize(file_path, &file_size_)) {
     file_ = file_util::OpenFile(file_path, "rb");
   }
   if (!file_) {
     file_size_ = 0;
     return PIPELINE_ERROR_URL_NOT_FOUND;
   }
-  media_format_.SetAsString(MediaFormat::kURL, url);
-
   if (host()) {
     host()->SetTotalBytes(file_size_);
     host()->SetBufferedBytes(file_size_);
   }
 
   return PIPELINE_OK;
 }
 
 void FileDataSource::set_host(FilterHost* filter_host) {
   DataSource::set_host(filter_host);
   if (file_) {
     host()->SetTotalBytes(file_size_);
     host()->SetBufferedBytes(file_size_);
   }
 }
 
 void FileDataSource::Stop(FilterCallback* callback) {
   base::AutoLock l(lock_);
   if (file_) {
     file_util::CloseFile(file_);
     file_ = NULL;
     file_size_ = 0;
   }
   if (callback) {
     callback->Run();
     delete callback;
   }
 }
 
-const MediaFormat& FileDataSource::media_format() {
-  return media_format_;
-}
-
 void FileDataSource::Read(int64 position, size_t size, uint8* data,
                           ReadCallback* read_callback) {
   DCHECK(file_);
   base::AutoLock l(lock_);
   scoped_ptr<ReadCallback> callback(read_callback);
   if (file_) {
 #if defined(OS_WIN)
     if (_fseeki64(file_, position, SEEK_SET)) {
       callback->RunWithParams(
           Tuple1<size_t>(static_cast<size_t>(DataSource::kReadError)));
@@ skipping 27 matching lines @@
   return (NULL != file_);
 }
 
 bool FileDataSource::IsStreaming() {
   return false;
 }
 
 void FileDataSource::SetPreload(Preload preload) {}
 
 }  // namespace media