chrome/browser/net/spdyproxy/data_saving_metrics.h

   1 // Copyright 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 #ifndef CHROME_BROWSER_NET_SPDYPROXY_DATA_SAVING_METRICS_H_
   6 #define CHROME_BROWSER_NET_SPDYPROXY_DATA_SAVING_METRICS_H_
   7
   8 #include "base/time/time.h"
   9
  10 namespace net {
  11 class URLRequest;
  12 }
  13
  14 class PrefService;
  15
  16 namespace spdyproxy {
  17
  18 enum DataReductionRequestType {
  19   VIA_DATA_REDUCTION_PROXY,  // A request served by the data reduction proxy.
  20
  21   // Below are reasons why a request is not served by the enabled data
  22   // reduction proxy. We don't count off-the-record profile data in all cases.
  23   HTTPS,  // An https request.
  24   SHORT_BYPASS,  // The client is bypassed by the proxy for a short time.
  25   LONG_BYPASS,  // The client is bypassed by the proxy for a long time (due
  26                 // to country bypass policy, for example).
  27   UNKNOWN_TYPE,  // Any other reason not listed above.
  28 };
  29
  30 // Returns DataReductionRequestType for |request|.
  31 DataReductionRequestType GetDataReductionRequestType(
  32     const net::URLRequest* request);
  33
  34 // Returns |received_content_length| as adjusted original content length if
  35 // |original_content_length| has the invalid value (-1) or |data_reduction_type|
  36 // is not |VIA_DATA_REDUCTION_PROXY|.
  37 int64 GetAdjustedOriginalContentLength(
  38     DataReductionRequestType data_reduction_type,
  39     int64 original_content_length,
  40     int64 received_content_length);
  41
  42 #if defined(OS_ANDROID) || defined(OS_IOS)
  43 // This is only exposed for testing. It is normally called by
  44 // UpdateContentLengthPrefs.
  45 void UpdateContentLengthPrefsForDataReductionProxy(
  46     int received_content_length,
  47     int original_content_length,
  48     bool with_data_reduction_proxy_enabled,
  49     DataReductionRequestType data_reduction_type,
  50     base::Time now, PrefService* prefs);
  51 #endif
  52
  53 // Records daily data savings statistics to prefs and reports data savings UMA.
  54 void UpdateContentLengthPrefs(
  55     int received_content_length,
  56     int original_content_length,
  57     bool with_data_reduction_proxy_enabled,
  58     DataReductionRequestType data_reduction_type,
  59     PrefService* prefs);
  60
  61 }  // namespace spdyproxy
  62
  63 #endif  // CHROME_BROWSER_NET_SPDYPROXY_DATA_SAVING_METRICS_H_