Roll src/ios/third_party/edo/src/ e8a984232..91c532d92 (8 commits)

https://chromium.googlesource.com/external/github.com/google/eDistantObject.git/+log/e8a984232246..91c532d921e1

$ git log e8a984232..91c532d92 --date=short --no-merges --format='%ad %ae %s'
2020-11-23 haowoo Retrieve block signatures directly from block headers.
2020-11-21 mobile-devx-github-bot Add signature to blocks in EDO
2020-11-10 albertbow Fix Swift Array objectAtIndex: failure on eDO since iOS 13.4.
2020-11-02 albertbow Fix eDO TSAN issue caused by __block variable.
2020-10-14 albertbow Enable ASAN and TSAN Travis tests in external CI.
2020-10-14 albertbow Fix eDO ASAN issue captured by Xcode 10.
2020-10-06 albertbow Fix TSAN warning on EDOListenSocket.
2020-10-03 haowoo Remove the unneeded cancel block.

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

Bug: 1152551
Change-Id: I74d20d4a29ac6a4aeccbb47bcdc10f57d43c2070
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2558784Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Zhaoyang Li <zhaoyangli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#830771}

DEPS

@@ -543,7 +543,7 @@ deps = {
   },
 
     'src/ios/third_party/edo/src': {
-      'url': Var('chromium_git') + '/external/github.com/google/eDistantObject.git' + '@' + 'e8a984232246078667bfb2699494bc0fc0b363fb',
+      'url': Var('chromium_git') + '/external/github.com/google/eDistantObject.git' + '@' + '91c532d921e1f37f7e0f213c534df16df6061ec1',
       'condition': 'checkout_ios',
   },