Roll chromium_revision 6919ce3..c40535a (354197:354244)

Change log: https://chromium.googlesource.com/chromium/src/+log/6919ce3..c40535a
Full diff: https://chromium.googlesource.com/chromium/src/+/6919ce3..c40535a

No dependencies changed.
No update to Clang.

TBR=
CQ_EXTRA_TRYBOTS=tryserver.webrtc:win_baremetal,mac_baremetal,linux_baremetal

Review URL: https://codereview.webrtc.org/1405443007

Cr-Commit-Position: refs/heads/master@{#10284}
diff --git a/DEPS b/DEPS
index ddc910d..bd2d0b0 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': '6919ce3b8c916bb007b77b08bd3ef93f2fe35f74',
+  'chromium_revision': 'c40535a11b581c7cb6776aa06a51a4d9f03c7060',
 }
 
 # NOTE: Prefer revision numbers to tags for svn deps. Use http rather than