Roll src/third_party/libFuzzer/src/ a00e8070b..ba2c1cd6f (19 commits)

https://chromium.googlesource.com/chromium/llvm-project/compiler-rt/lib/fuzzer.git/+log/a00e8070bea6..ba2c1cd6f87a

$ git log a00e8070b..ba2c1cd6f --date=short --no-merges --format='%ad %ae %s'
2017-12-13 morehouse [libFuzzer] Add dummy call of LLVMFuzzerTestOneInput to afl_driver.
2017-12-12 kcc [libFuzzer] change the strategy for -experimental_len_control to grow max_len slower
2017-12-09 kcc [libFuzzer] even less aggressive step function for stack depth. Also don't use asan in one test to speed it up
2017-12-09 kcc [libFuzzer] make the stack depth signal less agressive, otherwise we are sometimes exploding the corpus size. This still needs more analysis and tuning
2017-12-08 morehouse [libFuzzer] Add support for Fuchsia OS.
2017-12-08 kcc [libFuzzer] honor -use_counters, sligntly change the meaning of -experimental_len_control, call UpdateFeatureFrequency only if instructed by the flag
2017-12-06 kcc [libFuzzer] Decrease stack usage in unit tests
2017-12-06 kcc [libFuzzer] fix a minor regression in printing
2017-12-05 morehouse [libFuzzer] Make redirects happen in proper sequence.
2017-12-04 morehouse [libFuzzer] Remove const from ignoreRemainingArgs return value.
2017-12-04 morehouse [libFuzzer] Remove FuzzerCommand.cpp from build sources.
2017-12-04 morehouse [libFuzzer] Encapsulate commands in a class.
2017-12-01 kcc [libFuzzer] add a flag -malloc_limit_mb
2017-12-01 kcc [libFuzzer] remove stale flags; NFC
2017-12-01 kcc [libFuzzer] add an experimental search heuristic flag -reduce_depth
2017-11-28 delcypher [LibFuzzer] Improve comments on `CounterToFeature()` function.
2017-11-17 vitalybuka [fuzzer] Initialize PcDescr buffer before calling __sanitizer_symbolize_pc
2017-11-15 kcc libfuzzer: Fix file listing on some filesystems
2017-11-15 kcc [libFuzzer] respect max_len during merge

Created with:
  roll-dep src/third_party/libFuzzer/src

Bug: 539572
Change-Id: I8dd43d49dea0441595e9e04f1ddb61950333f896
Reviewed-on: https://chromium-review.googlesource.com/828408
Commit-Queue: Abhishek Arya <inferno@chromium.org>
Reviewed-by: Abhishek Arya <inferno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#524453}

DEPS

@@ -134,7 +134,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libFuzzer
   # and whatever else without interference from each other.
-  'libfuzzer_revision': 'a00e8070bea627f21df4a7eb1d58083f1bcfbba1',
+  'libfuzzer_revision': 'ba2c1cd6f87accb32b5dbce297387c56a2e53a2f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling devtools-node-modules
   # and whatever else without interference from each other.