Update DEPS for 3959 branching

# This is an automated release commit.
# Do not revert without consulting chrome-pmo@google.com.
NOAUTOREVERT=true
TBR=cmasso@chromium.org

Change-Id: I69eb54057bb7c6c48123c190ad18d7df396689f2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1895765
Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/3959@{#1}
Cr-Branched-From: a68246c-refs/heads/master@{#712042}

DEPS

@@ -176,23 +176,23 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.
-  'v8_revision': '53ede12e867e12ed12a5d257cf69bd2c6abe9ab9',
+  'v8_revision': 'refs/heads/chromium/3959',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling swarming_client
   # and whatever else without interference from each other.
   'swarming_revision': '885b3febcc170a60f25795304e60927b77d1e92d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ANGLE
   # and whatever else without interference from each other.
-  'angle_revision': '6c7208f93d6ecda3ad2515ea02e3dd5985a9dafe',
+  'angle_revision': 'refs/heads/chromium/3959',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.
   'swiftshader_revision': 'aaa64b76c0b40c2958a18cfdc623157c8c6e1b7d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.
-  'pdfium_revision': 'c3a91730e33ec37e08413edbb6628d789799ba56',
+  'pdfium_revision': 'refs/heads/chromium/3959',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.
@@ -307,7 +307,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
-  'dawn_revision': '314fd3513d04fdc7412df0b6c7defc7b79356e8',
+  'dawn_revision': '314fd3513d04fdc7412df0b6c7defc7b79356e8d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
@@ -1579,7 +1579,7 @@ deps = {
     Var('chromium_git') + '/v8/v8.git' + '@' +  Var('v8_revision'),
 
   'src-internal': {
-    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@9a18bfc9603853d6b3b0f5f3103cbf2e9f5e3b0b',
+    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@refs/heads/chromium/3959',
     'condition': 'checkout_src_internal',
   },