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

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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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25
dom/performance/PerformanceTiming.h Normal file → Executable file
View file

@ -10,6 +10,7 @@
#include "mozilla/Attributes.h"
#include "nsContentUtils.h"
#include "nsDOMNavigationTiming.h"
#include "mozilla/TimerClamping.h"
#include "nsWrapperCache.h"
#include "Performance.h"
@ -68,10 +69,10 @@ public:
* page), if the given TimeStamp is valid. Otherwise, it will return
* the FetchStart timing value.
*/
inline DOMHighResTimeStamp TimeStampToDOMHighResOrFetchStart(TimeStamp aStamp)
inline DOMHighResTimeStamp TimeStampToReducedDOMHighResOrFetchStart(TimeStamp aStamp)
{
return (!aStamp.IsNull())
? TimeStampToDOMHighRes(aStamp)
? TimerClamping::ReduceMsTimeValue(TimeStampToDOMHighRes(aStamp))
: FetchStartHighRes();
}
@ -119,7 +120,7 @@ public:
if (!nsContentUtils::IsPerformanceTimingEnabled()) {
return 0;
}
return GetDOMTiming()->GetNavigationStart();
return TimerClamping::ReduceMsTimeValue(GetDOMTiming()->GetNavigationStart());
}
DOMTimeMilliSec UnloadEventStart()
@ -127,7 +128,7 @@ public:
if (!nsContentUtils::IsPerformanceTimingEnabled()) {
return 0;
}
return GetDOMTiming()->GetUnloadEventStart();
return TimerClamping::ReduceMsTimeValue(GetDOMTiming()->GetUnloadEventStart());
}
DOMTimeMilliSec UnloadEventEnd()
@ -135,7 +136,7 @@ public:
if (!nsContentUtils::IsPerformanceTimingEnabled()) {
return 0;
}
return GetDOMTiming()->GetUnloadEventEnd();
return TimerClamping::ReduceMsTimeValue(GetDOMTiming()->GetUnloadEventEnd());
}
uint16_t GetRedirectCount() const;
@ -185,7 +186,7 @@ public:
if (!nsContentUtils::IsPerformanceTimingEnabled()) {
return 0;
}
return GetDOMTiming()->GetDomLoading();
return TimerClamping::ReduceMsTimeValue(GetDOMTiming()->GetDomLoading());
}
DOMTimeMilliSec DomInteractive() const
@ -193,7 +194,7 @@ public:
if (!nsContentUtils::IsPerformanceTimingEnabled()) {
return 0;
}
return GetDOMTiming()->GetDomInteractive();
return TimerClamping::ReduceMsTimeValue(GetDOMTiming()->GetDomInteractive());
}
DOMTimeMilliSec DomContentLoadedEventStart() const
@ -201,7 +202,7 @@ public:
if (!nsContentUtils::IsPerformanceTimingEnabled()) {
return 0;
}
return GetDOMTiming()->GetDomContentLoadedEventStart();
return TimerClamping::ReduceMsTimeValue(GetDOMTiming()->GetDomContentLoadedEventStart());
}
DOMTimeMilliSec DomContentLoadedEventEnd() const
@ -209,7 +210,7 @@ public:
if (!nsContentUtils::IsPerformanceTimingEnabled()) {
return 0;
}
return GetDOMTiming()->GetDomContentLoadedEventEnd();
return TimerClamping::ReduceMsTimeValue(GetDOMTiming()->GetDomContentLoadedEventEnd());
}
DOMTimeMilliSec DomComplete() const
@ -217,7 +218,7 @@ public:
if (!nsContentUtils::IsPerformanceTimingEnabled()) {
return 0;
}
return GetDOMTiming()->GetDomComplete();
return TimerClamping::ReduceMsTimeValue(GetDOMTiming()->GetDomComplete());
}
DOMTimeMilliSec LoadEventStart() const
@ -225,7 +226,7 @@ public:
if (!nsContentUtils::IsPerformanceTimingEnabled()) {
return 0;
}
return GetDOMTiming()->GetLoadEventStart();
return TimerClamping::ReduceMsTimeValue(GetDOMTiming()->GetLoadEventStart());
}
DOMTimeMilliSec LoadEventEnd() const
@ -233,7 +234,7 @@ public:
if (!nsContentUtils::IsPerformanceTimingEnabled()) {
return 0;
}
return GetDOMTiming()->GetLoadEventEnd();
return TimerClamping::ReduceMsTimeValue(GetDOMTiming()->GetLoadEventEnd());
}
private: