From a32b7f7c4e4e31669e0787e6321d74e4db71e514 Mon Sep 17 00:00:00 2001 From: Tom Ritter 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/performance/Performance.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) mode change 100644 => 100755 dom/performance/Performance.cpp (limited to 'dom/performance/Performance.cpp') diff --git a/dom/performance/Performance.cpp b/dom/performance/Performance.cpp old mode 100644 new mode 100755 index 17273c55d..8dc239b05 --- a/dom/performance/Performance.cpp +++ b/dom/performance/Performance.cpp @@ -21,6 +21,7 @@ #include "mozilla/dom/PerformanceObserverBinding.h" #include "mozilla/IntegerPrintfMacros.h" #include "mozilla/Preferences.h" +#include "mozilla/TimerClamping.h" #include "WorkerPrivate.h" #include "WorkerRunnable.h" @@ -228,9 +229,9 @@ Performance::ClearResourceTimings() DOMHighResTimeStamp Performance::RoundTime(double aTime) const { - // Round down to the nearest 20us, because if the timer is too accurate people + // Round down to the nearest 2ms, because if the timer is too accurate people // can do nasty timing attacks with it. - const double maxResolutionMs = 0.020; + const double maxResolutionMs = 2; return floor(aTime / maxResolutionMs) * maxResolutionMs; } -- cgit v1.2.3