Allow callers of TimeSource::GetWallClockTime() to suspend time.

media/base/wall_clock_time_source_unittest.cc

Index: media/base/wall_clock_time_source_unittest.cc
diff --git a/media/base/wall_clock_time_source_unittest.cc b/media/base/wall_clock_time_source_unittest.cc
index fe8e04c1e82ad4460fa9c625106f13b39cb663bf..391fdfc88e7e9eeec7e1b6460e552953caa83974 100644
--- a/media/base/wall_clock_time_source_unittest.cc
+++ b/media/base/wall_clock_time_source_unittest.cc
@@ -31,11 +31,13 @@ class WallClockTimeSourceTest : public testing::Test {
 
   bool IsWallClockNowForMediaTimeInSeconds(int seconds) {
     return tick_clock_->NowTicks() ==
-           time_source_.GetWallClockTime(base::TimeDelta::FromSeconds(seconds));
+           time_source_.GetWallClockTime(base::TimeDelta::FromSeconds(seconds),
+                                         TimeSource::SINGLE_TIMESTAMP);
   }
 
   bool IsWallClockNullForMediaTimeInSeconds(int seconds) {
-    return time_source_.GetWallClockTime(base::TimeDelta::FromSeconds(seconds))
+    return time_source_.GetWallClockTime(base::TimeDelta::FromSeconds(seconds),
+                                         TimeSource::SINGLE_TIMESTAMP)
         .is_null();
   }