setAllowsRoundingHacks  208 Source/core/testing/Internals.cpp     TextRun::setAllowsRoundingHacks(false);
setAllowsRoundingHacks 1946 Source/core/testing/Internals.cpp     TextRun::setAllowsRoundingHacks(true);
setAllowsRoundingHacks  230 Source/platform/text/TextRun.h     static void setAllowsRoundingHacks(bool);