Roll src/ios/third_party/fishhook/src/ 80fe59373..66315a9c2 (2 commits)

https://chromium.googlesource.com/external/github.com/facebook/fishhook.git/+log/80fe593736ac..66315a9c251e

$ git log 80fe59373..66315a9c2 --date=short --no-merges --format='%ad %ae %s'
2019-08-22 swolchok Properly restore protections for iOS 13
2019-08-20 swolchok If hooking in __DATA_CONST, make writable before trying to write

Created with:
  roll-dep src/ios/third_party/fishhook/src

Bug: 1012326
Change-Id: I0454bebf46da11c9c52acb24211ed4a847b5e0b9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1848915Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Commit-Queue: Lindsay Pasricha <lindsayw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#704390}

DEPS

@@ -511,7 +511,7 @@ deps = {
   },
 
   'src/ios/third_party/fishhook/src': {
-      'url': Var('chromium_git') + '/external/github.com/facebook/fishhook.git' + '@' + '80fe593736ac22162e77f891c7cba5095cf1cd4e',
+      'url': Var('chromium_git') + '/external/github.com/facebook/fishhook.git' + '@' + '66315a9c251edfe92f669ae2deeac0d75374c948',
       'condition': 'checkout_ios',
   },