Pass delay and timestamp to AudioSourceCallback::OnMoreData.

base/time/time_posix.cc

Index: base/time/time_posix.cc
diff --git a/base/time/time_posix.cc b/base/time/time_posix.cc
index 0897f9c64e64e669d64c122d7a3b6c8852a082a4..b049f367d32a9528a96998d9f06f80ef8dfdb1fc 100644
--- a/base/time/time_posix.cc
+++ b/base/time/time_posix.cc
@@ -110,6 +110,12 @@ int64_t ClockNow(clockid_t clk_id) {
 
 namespace base {
 
+// static
+TimeDelta TimeDelta::FromTimeSpec(const timespec& ts) {
+  return TimeDelta(ts.tv_sec * Time::kMicrosecondsPerSecond +
+                   ts.tv_nsec / Time::kNanosecondsPerMicrosecond);
+}
+
 struct timespec TimeDelta::ToTimeSpec() const {
   int64_t microseconds = InMicroseconds();
   time_t seconds = 0;