diff --git a/DEPS b/DEPS
index 6ce41d91..823e4d3 100644
--- a/DEPS
+++ b/DEPS
@@ -41,6 +41,7 @@
 
 
 vars = {
+  "buildspec_platforms": "chromeos",
   # Variable that can be used to support multiple build scenarios, like having
   # Chromium specific targets in a client project's GN file or sync dependencies
   # conditionally etc.
@@ -179,7 +180,7 @@
   # 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': 'refs/heads/chromium/4097',
+  'v8_revision': '76649a7cd9701e25728fd36c96ef1203053b1e4d',
   # 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.
@@ -187,7 +188,7 @@
   # 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': 'refs/heads/chromium/4097',
+  'angle_revision': 'f2bee3043a5e55189e775b07548779d2dd4061f9',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.
@@ -195,7 +196,7 @@
   # 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': 'refs/heads/chromium/4097',
+  'pdfium_revision': '7bb6613a0b68569f94e9ff271a111dfe8de88097',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.
@@ -246,7 +247,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling devtools-frontend
   # and whatever else without interference from each other.
-  'devtools_frontend_revision': 'refs/heads/chromium/4097',
+  'devtools_frontend_revision': '60a0e9defc41cc50316a04d743a262314be1026c',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libprotobuf-mutator
   # and whatever else without interference from each other.
@@ -1448,7 +1449,7 @@
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + '84ee597cdeae08bb26e578fc66a35bcf35f633f4',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'refs/branch-heads/4097',
+    Var('webrtc_git') + '/src.git' + '@' + 'd19513f3ffbb939fd56b5377b678bb31d3154e14',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),
@@ -1523,7 +1524,7 @@
     Var('chromium_git') + '/v8/v8.git' + '@' +  Var('v8_revision'),
 
   'src-internal': {
-    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@refs/heads/chromium/4097',
+    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@3b3ccd4609272ff2013888b2605ae83dc1aacfb0',
     'condition': 'checkout_src_internal',
   },