Fix some clang warnings with -Wmissing-braces in printing.

printing/backend/win_helper.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 "printing/backend/win_helper.h"
 
 #include <algorithm>
 
 #include "base/file_version_info.h"
 #include "base/files/file_path.h"
@@ skipping 73 matching lines @@
   DCHECK(stream);
   HRESULT hr = CreateStreamOnHGlobal(NULL, TRUE, stream);
   if (FAILED(hr)) {
     return hr;
   }
   ULONG bytes_written = 0;
   (*stream)->Write(print_ticket.c_str(),
                    base::checked_cast<ULONG>(print_ticket.length()),
                    &bytes_written);
   DCHECK(bytes_written == print_ticket.length());
-  LARGE_INTEGER pos = {0};
-  ULARGE_INTEGER new_pos = {0};
+  LARGE_INTEGER pos = {};
+  ULARGE_INTEGER new_pos = {};
   (*stream)->Seek(pos, STREAM_SEEK_SET, &new_pos);
   return S_OK;
 }
 
 const char kXpsTicketTemplate[] =
   "<?xml version='1.0' encoding='UTF-8'?>"
   "<psf:PrintTicket "
   "xmlns:psf='"
   "http://schemas.microsoft.com/windows/2003/08/printing/printschemaframework' "
   "xmlns:psk="
@@ skipping 418 matching lines @@
     *canceled = (result == IDCANCEL);
   if (result != IDOK)
     return scoped_ptr<DEVMODE, base::FreeDeleter>();
   int size = out->dmSize;
   int extra_size = out->dmDriverExtra;
   CHECK_GE(buffer_size, size + extra_size);
   return out.Pass();
 }
 
 }  // namespace printing