/*
 * Copyright 2010 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// Author: pradnya@google.com (Pradnya Karbhari)

// Header file that includes global constants to be used in net/instaweb.

#ifndef NET_INSTAWEB_PUBLIC_GLOBAL_CONSTANTS_H_
#define NET_INSTAWEB_PUBLIC_GLOBAL_CONSTANTS_H_

namespace {

// Time of day used in Chromium when running javascript in deterministic mode
// (with flag --no-js-randomness). We use the same time of day for slurping,
// validation and measurement in order to maintain consistency.
static const double kChromiumTimeOfDay = 1204251968254LL;
const char kModPagespeedHeader[] = "X-Mod-Pagespeed";
const char kPageSpeedHeader[] = "X-Page-Speed";
const char kRequestStartTimeHeader[] = "X-Request-Start-Time";
const char kWPTUserAgentIdentifier[] = "PTST ";
// The name of the header used to specify the rewriters that were
// applied to the current request.
const char kPsaRewriterHeader[] = "X-PSA-Rewriter";
// The name of the header that pubilshers can use to send the time when the
// cacheable content on the page was last modified.  This is used by
// prioritize_visible_content filter to invalidate its cache.
const char kPsaLastModified[] = "X-PSA-Last-Modified";

}  // namespace

#endif  // NET_INSTAWEB_PUBLIC_GLOBAL_CONSTANTS_H_
