Collect data reduction proxy UMA on all platforms

components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc

Index: components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc
diff --git a/components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc b/components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc
index f673a2095d861f612eaa63206491bb6b90afe626..3ecef8a0704c590443fe527a2288750366425e80 100644
--- a/components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc
+++ b/components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc
@@ -24,8 +24,6 @@ namespace {
 // A bypass delay more than this is treated as a long delay.
 const int kLongBypassDelayInSeconds = 30 * 60;
 
-#if defined(OS_ANDROID) || defined(OS_IOS)
-
 // Increments an int64, stored as a string, in a ListPref at the specified
 // index.  The value must already exist and be a string representation of a
 // number.
@@ -298,14 +296,11 @@ class DailyDataSavingUpdate {
   DailyContentLengthUpdate received_;
 };
 
-#endif  // defined(OS_ANDROID) || defined(OS_IOS)
-
 // Returns true if the request is bypassed by all configured data reduction
 // proxies. It returns the bypass delay in delay_seconds (if not NULL). If
 // the request is bypassed by more than one proxy, delay_seconds returns
 // shortest delay.
 bool IsBypassRequest(const net::URLRequest* request, int64* delay_seconds) {
-#if defined(OS_ANDROID) || defined(OS_IOS)
   DataReductionProxySettings::DataReductionProxyList proxies =
       DataReductionProxySettings::GetDataReductionProxies();
   if (proxies.size() == 0)
@@ -340,9 +335,6 @@ bool IsBypassRequest(const net::URLRequest* request, int64* delay_seconds) {
   if (delay_seconds != NULL)
     *delay_seconds = shortest_delay;
   return true;
-#else
-  return false;
-#endif  // defined(OS_ANDROID) || defined(OS_IOS)
 }
 
 }  // namespace
@@ -360,12 +352,10 @@ DataReductionProxyRequestType GetDataReductionProxyRequestType(
     return (bypass_delay > kLongBypassDelayInSeconds) ?
       LONG_BYPASS : SHORT_BYPASS;
   }
-#if defined(SPDY_PROXY_AUTH_ORIGIN)
   if (request->response_info().headers &&
       request->response_info().headers->IsDataReductionProxyResponse()) {
     return VIA_DATA_REDUCTION_PROXY;
   }
-#endif
   return UNKNOWN_TYPE;
 }
 
@@ -382,7 +372,6 @@ int64 GetAdjustedOriginalContentLength(
   return original_content_length;
 }
 
-#if defined(OS_ANDROID) || defined(OS_IOS)
 void UpdateContentLengthPrefsForDataReductionProxy(
     int received_content_length,
     int original_content_length,
@@ -403,10 +392,20 @@ void UpdateContentLengthPrefsForDataReductionProxy(
   // Determine how many days it has been since the last update.
   int64 then_internal = prefs->GetInt64(
       data_reduction_proxy::prefs::kDailyHttpContentLengthLastUpdateDate);
+
+#if defined(OS_WIN)
+  base::Time then_midnight = base::Time::FromInternalValue(then_internal);
+  base::Time midnight =
+      base::Time::FromInternalValue(
+          (now.ToInternalValue() / base::Time::kMicrosecondsPerDay) *
+              base::Time::kMicrosecondsPerDay);
+#else
   // Local midnight could have been shifted due to time zone change.
   base::Time then_midnight =
       base::Time::FromInternalValue(then_internal).LocalMidnight();
   base::Time midnight = now.LocalMidnight();
+#endif
+
   int days_since_last_update = (midnight - then_midnight).InDays();
 
   // Each day, we calculate the total number of bytes received and the total
@@ -511,7 +510,6 @@ void UpdateContentLengthPrefsForDataReductionProxy(
     }
   }
 }
-#endif  // defined(OS_ANDROID) || defined(OS_IOS)
 
 void UpdateContentLengthPrefs(
     int received_content_length,
@@ -530,7 +528,6 @@ void UpdateContentLengthPrefs(
   prefs->SetInt64(data_reduction_proxy::prefs::kHttpOriginalContentLength,
                   total_original);
 
-#if defined(OS_ANDROID) || defined(OS_IOS)
   UpdateContentLengthPrefsForDataReductionProxy(
       received_content_length,
       original_content_length,
@@ -538,8 +535,6 @@ void UpdateContentLengthPrefs(
       request_type,
       base::Time::Now(),
       prefs);
-#endif  // defined(OS_ANDROID) || defined(OS_IOS)
-
 }
 
 }  // namespace data_reduction_proxy