[Net] Fix error handling on wrong file in UploadData

chrome_frame/urlmon_upload_data_stream.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 "chrome_frame/urlmon_upload_data_stream.h"
 
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "net/base/upload_bytes_element_reader.h"
 #include "net/base/upload_file_element_reader.h"
@@ skipping 41 matching lines @@
       element_readers.push_back(reader);
     }
     upload_data_stream = new net::UploadDataStream(element_readers.Pass(),
                                                    upload_data->identifier());
   }
   return upload_data_stream;
 }
 
 }  // namespace
 
-void UrlmonUploadDataStream::Initialize(net::UploadData* upload_data) {
+bool UrlmonUploadDataStream::Initialize(net::UploadData* upload_data) {
   upload_data_ = upload_data;
   request_body_stream_.reset(CreateUploadDataStream(upload_data));
-  const int result = request_body_stream_->Init(net::CompletionCallback());
-  DCHECK_EQ(net::OK, result);
+  return request_body_stream_->Init(net::CompletionCallback()) == net::OK;
 }
 
 STDMETHODIMP UrlmonUploadDataStream::Read(void* pv, ULONG cb, ULONG* read) {
   if (pv == NULL) {
     NOTREACHED();
     return E_POINTER;
   }
 
   // Have we already read past the end of the stream?
   if (request_body_stream_->IsEOF()) {
@@ skipping 68 matching lines @@
   if (0 == (grf_stat_flag & STATFLAG_NONAME)) {
     const wchar_t kStreamBuffer[] = L"PostStream";
     stat_stg->pwcsName =
         static_cast<wchar_t*>(::CoTaskMemAlloc(sizeof(kStreamBuffer)));
     lstrcpy(stat_stg->pwcsName, kStreamBuffer);
   }
   stat_stg->type = STGTY_STREAM;
   stat_stg->cbSize.QuadPart = request_body_stream_->size();
   return S_OK;
 }