Roll chromium_revision ca4c339..07b4a8e (352257:352281)

Change log: https://chromium.googlesource.com/chromium/src/+log/ca4c339..07b4a8e
Full diff: https://chromium.googlesource.com/chromium/src/+/ca4c339..07b4a8e

No dependencies changed.
No update to Clang.

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

Review URL: https://codereview.webrtc.org/1387803002

Cr-Commit-Position: refs/heads/master@{#10162}
diff --git a/DEPS b/DEPS
index 5e6d6a9..82527c4 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': 'ca4c3396f0caa1c00462836a87623216e1ce3c4f',
+  'chromium_revision': '07b4a8e9e6144cc69d2aabb63d5b58011af21965',
 }
 
 # NOTE: Prefer revision numbers to tags for svn deps. Use http rather than