Update DEPS for 4992 branching

Change-Id: I9b3b411011c83eb963bab4458bdd6dd71ac422ac
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3577394
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/4992@{#1}
Cr-Branched-From: 9639d88-refs/heads/main@{#990338}

DEPS

@@ -257,19 +257,19 @@ 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': 'b3e3e838766776dc4b16b9f842d8f154ada074e6',
+  'v8_revision': 'refs/heads/chromium/4992',
   # 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': 'd6ff967e31ff40e84ea0891d22ae94a1821319b2',
+  'angle_revision': 'refs/heads/chromium/4992',
   # 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': 'd15c42482560fba311e3cac90203438ad972df55',
   # 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': '268f21c9d342b6bfd66621eb3940f9a1902898f9',
+  'pdfium_revision': 'refs/heads/chromium/4992',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.
@@ -364,7 +364,7 @@ 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': '9d27aaaaa1e2d5bc7ee596eb11ab91db7af51aa3',
+  'dawn_revision': 'refs/heads/chromium/4992',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
@@ -1615,7 +1615,7 @@ deps = {
   },
 
   'src/third_party/requests/src': {
-      'url': Var('chromium_git') + '/external/github.com/kennethreitz/requests.git' + '@' + 'refs/tags/v2.23.0',
+      'url': Var('chromium_git') + '/external/github.com/kennethreitz/requests.git' + '@' + 'c7e0fc087ceeadb8b4c84a0953a422c474093d6d',
       'condition': 'checkout_android',
   },
 
@@ -1694,7 +1694,7 @@ deps = {
       'condition': 'checkout_android',
   },
 
-  'src/third_party/vulkan-deps': '{chromium_git}/vulkan-deps@15f2db7e77f2e65d6d644d79d2ad03dd719b2d77',
+  'src/third_party/vulkan-deps': '{chromium_git}/vulkan-deps@refs/heads/chromium/4992',
 
   'src/third_party/vulkan_memory_allocator':
     Var('chromium_git') + '/external/github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git' + '@' + 'ebe84bec02c041d28f902da0214bf442743fc907',
@@ -1733,7 +1733,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + 'e981a13e9698cb0fcc4dea870cf93930e5af4ddb',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '137c2a83166a314b006a2b5e7c4729d3b2bd5e72',
+    Var('webrtc_git') + '/src.git' + '@' + 'refs/branch-heads/4992',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),
@@ -1803,7 +1803,7 @@ deps = {
     Var('chromium_git') + '/v8/v8.git' + '@' +  Var('v8_revision'),
 
   'src-internal': {
-    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@725dc1ebaea1af91ff6b7917927585fb116ee2eb',
+    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@refs/heads/chromium/4992',
     'condition': 'checkout_src_internal',
   },