google_apis/drive/request_util.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "google_apis/drive/request_util.h"
   6
   7 #include <string>
   8
   9 namespace google_apis {
  10 namespace util {
  11
  12 namespace {
  13
  14 // etag matching header.
  15 const char kIfMatchHeaderPrefix[] = "If-Match: ";
  16
  17 }  // namespace
  18
  19 const char kIfMatchAllHeader[] = "If-Match: *";
  20
  21 std::string GenerateIfMatchHeader(const std::string& etag) {
  22   return etag.empty() ? kIfMatchAllHeader : (kIfMatchHeaderPrefix + etag);
  23 }
  24
  25 }  // namespace util
  26 }  // namespace google_apis