Reland "Change hotness counting." This reverts commit ce131feb7c60ffdf28c315c5d67f9cac33a077ce. Bug: 203810169 Test: test.py Test: health/microbench/startup/hscapps/compile-speed-profile/open-clock Reason for revert: Kept logic from before on what methods to save in the profile. Change-Id: Id67cd47a9fe31b4c6b154db20f632015238016d2