Update DEPS for 3880 branching

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

Change-Id: I954ce9b843c0177a2775416e6fd2a398efe5eb74
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1747392
Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/3880@{#1}
Cr-Branched-From: fd7bab0-refs/heads/master@{#685903}

DEPS

@@ -149,23 +149,23 @@ 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': 'b64cd439604df9119a35f170ee394c61bb4aa07d',
+  'v8_revision': 'refs/heads/chromium/3880',
   # 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': '96f125709acfd0b48fc1e5dae7d6ea42291726ac',
   # 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': 'b90755ba7793e8afbad85c5ac42db87122353ab9',
+  'angle_revision': 'refs/heads/chromium/3880',
   # 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': '34c59c9b88b76564cf534aad2f0033a472182d87',
   # 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': 'f97fd060af464f10755b274620d1b8c78bc3b913',
+  'pdfium_revision': 'refs/heads/chromium/3880',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.
@@ -1421,7 +1421,7 @@ deps = {
     Var('chromium_git') + '/v8/v8.git' + '@' +  Var('v8_revision'),
 
   'src-internal': {
-    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@275668bc221947c21435c951a75989dda87688d5',
+    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@refs/heads/chromium/3880',
     'condition': 'checkout_src_internal',
   },