* sanitizer_common/sanitizer_stacktrace.cc: Cherry pick upstream r209879. * sanitizer_common/sanitizer_common.h: Likewise. * asan/asan_mapping.h: Likewise. * asan/asan_linux.cc: Likewise. * tsan/tsan_mman.cc: Cherry pick upstream r209744. * sanitizer_common/sanitizer_allocator.h: Likewise. From-SVN: r211080