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
This commit is contained in:
Tom Ritter 2018-02-20 12:18:30 -06:00 committed by Roy Tam
commit c66f2e1613
14 changed files with 109 additions and 33 deletions

5
dom/media/DOMMediaStream.cpp Normal file → Executable file
View file

@ -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

3
dom/media/webaudio/AudioContext.cpp Normal file → Executable file
View file

@ -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