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Bug 1430173 - Reduce the precision of all explicit clocks to 2ms. r=baku, a=RyanVM

Browse source 
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
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22
dom/performance/PerformanceTiming.cpp Normal file → Executable file
View file

@ -21,7 +21,7 @@ PerformanceTiming::PerformanceTiming(Performance* aPerformance,
DOMHighResTimeStamp aZeroTime)
: mPerformance(aPerformance),
mFetchStart(0.0),
mZeroTime(aZeroTime),
mZeroTime(TimerClamping::ReduceMsTimeValue(aZeroTime)),
mRedirectCount(0),
mTimingAllowed(true),
mAllRedirectsSameOrigin(true),
@ -117,7 +117,7 @@ PerformanceTiming::FetchStartHighRes()
? TimeStampToDOMHighRes(mAsyncOpen)
: 0.0;
}
return mFetchStart;
return TimerClamping::ReduceMsTimeValue(mFetchStart);
}
DOMTimeMilliSec
@ -203,7 +203,7 @@ PerformanceTiming::RedirectStartHighRes()
if (!nsContentUtils::IsPerformanceTimingEnabled() || !IsInitialized()) {
return mZeroTime;
}
return TimeStampToDOMHighResOrFetchStart(mRedirectStart);
return TimeStampToReducedDOMHighResOrFetchStart(mRedirectStart);
}
DOMTimeMilliSec
@ -236,7 +236,7 @@ PerformanceTiming::RedirectEndHighRes()
if (!nsContentUtils::IsPerformanceTimingEnabled() || !IsInitialized()) {
return mZeroTime;
}
return TimeStampToDOMHighResOrFetchStart(mRedirectEnd);
return TimeStampToReducedDOMHighResOrFetchStart(mRedirectEnd);
}
DOMTimeMilliSec
@ -259,7 +259,7 @@ PerformanceTiming::DomainLookupStartHighRes()
if (!nsContentUtils::IsPerformanceTimingEnabled() || !IsInitialized()) {
return mZeroTime;
}
return TimeStampToDOMHighResOrFetchStart(mDomainLookupStart);
return TimeStampToReducedDOMHighResOrFetchStart(mDomainLookupStart);
}
DOMTimeMilliSec
@ -276,7 +276,7 @@ PerformanceTiming::DomainLookupEndHighRes()
}
// Bug 1155008 - nsHttpTransaction is racy. Return DomainLookupStart when null
return mDomainLookupEnd.IsNull() ? DomainLookupStartHighRes()
: TimeStampToDOMHighRes(mDomainLookupEnd);
: TimerClamping::ReduceMsTimeValue(TimeStampToDOMHighRes(mDomainLookupEnd));
}
DOMTimeMilliSec
@ -292,7 +292,7 @@ PerformanceTiming::ConnectStartHighRes()
return mZeroTime;
}
return mConnectStart.IsNull() ? DomainLookupEndHighRes()
: TimeStampToDOMHighRes(mConnectStart);
: TimerClamping::ReduceMsTimeValue(TimeStampToDOMHighRes(mConnectStart));
}
DOMTimeMilliSec
@ -329,7 +329,7 @@ PerformanceTiming::ConnectEndHighRes()
}
// Bug 1155008 - nsHttpTransaction is racy. Return ConnectStart when null
return mConnectEnd.IsNull() ? ConnectStartHighRes()
: TimeStampToDOMHighRes(mConnectEnd);
: TimerClamping::ReduceMsTimeValue(TimeStampToDOMHighRes(mConnectEnd));
}
DOMTimeMilliSec
@ -344,7 +344,7 @@ PerformanceTiming::RequestStartHighRes()
if (!nsContentUtils::IsPerformanceTimingEnabled() || !IsInitialized()) {
return mZeroTime;
}
return TimeStampToDOMHighResOrFetchStart(mRequestStart);
return TimeStampToReducedDOMHighResOrFetchStart(mRequestStart);
}
DOMTimeMilliSec
@ -363,7 +363,7 @@ PerformanceTiming::ResponseStartHighRes()
(!mCacheReadStart.IsNull() && mCacheReadStart < mResponseStart)) {
mResponseStart = mCacheReadStart;
}
return TimeStampToDOMHighResOrFetchStart(mResponseStart);
return TimeStampToReducedDOMHighResOrFetchStart(mResponseStart);
}
DOMTimeMilliSec
@ -384,7 +384,7 @@ PerformanceTiming::ResponseEndHighRes()
}
// Bug 1155008 - nsHttpTransaction is racy. Return ResponseStart when null
return mResponseEnd.IsNull() ? ResponseStartHighRes()
: TimeStampToDOMHighRes(mResponseEnd);
: TimerClamping::ReduceMsTimeValue(TimeStampToDOMHighRes(mResponseEnd));
}
DOMTimeMilliSec