From a32b7f7c4e4e31669e0787e6321d74e4db71e514 Mon Sep 17 00:00:00 2001
From: Tom Ritter <tom@mozilla.com>
Date: Tue, 20 Feb 2018 12:18:30 -0600
Subject: Bug 1430173 - Reduce the precision of all explicit clocks to 2ms.
 r=baku, a=RyanVM

Backport to ESR where we don't have the ResistFingerprinting component.

MozReview-Commit-ID: 9bjycHjR3SF

--HG--
extra : transplant_source : %EA%03%21%0A%E9%3F%8E%CD%7C%D79f%96%85%96%00%5D%7F%95X
---
 dom/media/DOMMediaStream.cpp        | 5 +++--
 dom/media/webaudio/AudioContext.cpp | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)
 mode change 100644 => 100755 dom/media/DOMMediaStream.cpp
 mode change 100644 => 100755 dom/media/webaudio/AudioContext.cpp

(limited to 'dom/media')

diff --git a/dom/media/DOMMediaStream.cpp b/dom/media/DOMMediaStream.cpp
old mode 100644
new mode 100755
index 6794ee32f..c1d451035
--- a/dom/media/DOMMediaStream.cpp
+++ b/dom/media/DOMMediaStream.cpp
@@ -9,6 +9,7 @@
 #include "nsIScriptError.h"
 #include "nsIUUIDGenerator.h"
 #include "nsPIDOMWindow.h"
+#include "mozilla/TimerClamping.h"
 #include "mozilla/dom/MediaStreamBinding.h"
 #include "mozilla/dom/MediaStreamTrackEvent.h"
 #include "mozilla/dom/LocalMediaStreamBinding.h"
@@ -544,8 +545,8 @@ DOMMediaStream::CurrentTime()
   if (!mPlaybackStream) {
     return 0.0;
   }
-  return mPlaybackStream->
-    StreamTimeToSeconds(mPlaybackStream->GetCurrentTime() - mLogicalStreamStartTime);
+  return TimerClamping::ReduceSTimeValue(mPlaybackStream->
+    StreamTimeToSeconds(mPlaybackStream->GetCurrentTime() - mLogicalStreamStartTime));
 }
 
 void
diff --git a/dom/media/webaudio/AudioContext.cpp b/dom/media/webaudio/AudioContext.cpp
old mode 100644
new mode 100755
index a36eda621..85842c811
--- a/dom/media/webaudio/AudioContext.cpp
+++ b/dom/media/webaudio/AudioContext.cpp
@@ -41,6 +41,7 @@
 #include "nsNetUtil.h"
 #include "nsPIDOMWindow.h"
 #include "nsPrintfCString.h"
+#include "mozilla/TimerClamping.h"
 #include "OscillatorNode.h"
 #include "PannerNode.h"
 #include "PeriodicWave.h"
@@ -746,7 +747,7 @@ double
 AudioContext::CurrentTime() const
 {
   MediaStream* stream = Destination()->Stream();
-  return stream->StreamTimeToSeconds(stream->GetCurrentTime());
+  return TimerClamping::ReduceSTimeValue(stream->StreamTimeToSeconds(stream->GetCurrentTime()));
 }
 
 void
-- 
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