Move the time conversion code to the PPAPI shared_impl directory and use it in

webkit/plugins/ppapi/time_conversion.cc

-// Copyright (c) 2011 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 "webkit/plugins/ppapi/time_conversion.h"
-
-namespace webkit {
-namespace ppapi {
-
-namespace {
-
-// Since WebKit doesn't use ticks for event times, we have to compute what
-// the time ticks would be assuming the wall clock time doesn't change.
-//
-// This should only be used for WebKit times which we can't change the
-// definition of.
-double GetTimeToTimeTicksDeltaInSeconds() {
-  static double time_to_ticks_delta_seconds = 0.0;
-  if (time_to_ticks_delta_seconds == 0.0) {
-    double wall_clock = TimeToPPTime(base::Time::Now());
-    double ticks = TimeTicksToPPTimeTicks(base::TimeTicks::Now());
-    time_to_ticks_delta_seconds = ticks - wall_clock;
-  }
-  return time_to_ticks_delta_seconds;
-}
-
-}  // namespace
-
-PP_Time TimeToPPTime(base::Time t) {
-  return t.ToDoubleT();
-}
-
-base::Time PPTimeToTime(PP_Time t) {
-  return base::Time::FromDoubleT(t);
-}
-
-PP_TimeTicks TimeTicksToPPTimeTicks(base::TimeTicks t) {
-  return static_cast<double>(t.ToInternalValue()) /
-      base::Time::kMicrosecondsPerSecond;
-}
-
-PP_TimeTicks EventTimeToPPTimeTicks(double event_time) {
-  return event_time + GetTimeToTimeTicksDeltaInSeconds();
-}
-
-double PPTimeTicksToEventTime(PP_TimeTicks t) {
-  return t - GetTimeToTimeTicksDeltaInSeconds();
-}
-
-}  // namespace ppapi
-}  // namespace webkit