Replace AudioSilenceDetector with an AudioPowerMonitor.

base/time.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 "base/time.h"
 
 #include <math.h>
-#if defined(OS_WIN)
-#include <float.h>
-#endif
-
 #include <limits>
 
+#include "base/float_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/third_party/nspr/prtime.h"
 
 #include "base/logging.h"
 
 namespace base {
 
-namespace {
-#if defined(OS_WIN)
-inline bool isnan(double num) { return !!_isnan(num); }
-#endif
-}
-
 // TimeDelta ------------------------------------------------------------------
 
 int TimeDelta::InDays() const {
   return static_cast<int>(delta_ / Time::kMicrosecondsPerDay);
 }
 
 int TimeDelta::InHours() const {
   return static_cast<int>(delta_ / Time::kMicrosecondsPerHour);
 }
 
@@ skipping 52 matching lines @@
   if (std::numeric_limits<int64>::max() - kTimeTToMicrosecondsOffset <= us_) {
     DLOG(WARNING) << "Overflow when converting base::Time with internal " <<
                      "value " << us_ << " to time_t.";
     return std::numeric_limits<time_t>::max();
   }
   return (us_ - kTimeTToMicrosecondsOffset) / kMicrosecondsPerSecond;
 }
 
 // static
 Time Time::FromDoubleT(double dt) {
-  if (dt == 0 || isnan(dt))
+  if (dt == 0 || IsNaN(dt))
     return Time();  // Preserve 0 so we can tell it doesn't exist.
   if (dt == std::numeric_limits<double>::max())
     return Max();
   return Time(static_cast<int64>((dt *
                                   static_cast<double>(kMicrosecondsPerSecond)) +
                                  kTimeTToMicrosecondsOffset));
 }
 
 double Time::ToDoubleT() const {
   if (is_null())
@@ skipping 77 matching lines @@
   return is_in_range(month, 1, 12) &&
          is_in_range(day_of_week, 0, 6) &&
          is_in_range(day_of_month, 1, 31) &&
          is_in_range(hour, 0, 23) &&
          is_in_range(minute, 0, 59) &&
          is_in_range(second, 0, 60) &&
          is_in_range(millisecond, 0, 999);
 }
 
 }  // namespace base