Roll chromium_revision 8a4d51ecec..1faffb800b (384952:385083)

Change log: https://chromium.googlesource.com/chromium/src/+log/8a4d51ecec..1faffb800b
Full diff: https://chromium.googlesource.com/chromium/src/+/8a4d51ecec..1faffb800b

Changed dependencies:
* src/tools/gyp: https://chromium.googlesource.com/external/gyp.git/+log/697933c2e3..4ec6c4e3a9
DEPS diff: https://chromium.googlesource.com/chromium/src/+/8a4d51ecec..1faffb800b/DEPS

No update to Clang.

TBR=

Review URL: https://codereview.webrtc.org/1858823004

Cr-Commit-Position: refs/heads/master@{#12226}
diff --git a/DEPS b/DEPS
index 8556a4c..451bb2c8 100644
--- a/DEPS
+++ b/DEPS
@@ -6,7 +6,7 @@
 vars = {
   'extra_gyp_flag': '-Dextra_gyp_flag=0',
   'chromium_git': 'https://chromium.googlesource.com',
-  'chromium_revision': '8a4d51ecec0253b09307267f13d98f462c6cf73b',
+  'chromium_revision': '1faffb800bfbe0fc305f283290a2d5bb98556301',
 }
 
 # NOTE: Use http rather than https; the latter can cause problems for users