Update DEPS for 4502 branching

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

Change-Id: I7ab66ae9afaef8a6693ce78ebe4ca6cd50f02a12
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2881944
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/4502@{#1}
Cr-Branched-From: fccc28a-refs/heads/master@{#880735}

DEPS

@@ -213,23 +213,23 @@ 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': 'b7118e742ab391ceda897315a7e86f77aa040031',
+  'v8_revision': 'refs/heads/chromium/4502',
   # 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': 'a32a1607f6093d338f756c7e7c7b4333b0c50c9c',
   # 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': 'd469dcb14189618088f344e5e8c14b836f11d259',
+  'angle_revision': 'refs/heads/chromium/4502',
   # 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': 'e260190edbd2984a045ac5990b3d31429d45d27f',
   # 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': '115cfacb0167c5d6283c1dc8e3493ca8ca8d3224',
+  'pdfium_revision': 'refs/heads/chromium/4502',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.
@@ -288,7 +288,7 @@ vars = {
   # 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': 'a123fcafd9112384c0001f68314c041270c11357',
+  'devtools_frontend_revision': 'refs/heads/chromium/4502',
   # 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.
@@ -328,7 +328,7 @@ 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': '26468c4071756b016468fc6c2729f702955acdcf',
+  'dawn_revision': 'refs/heads/chromium/4502',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
@@ -1536,7 +1536,7 @@ deps = {
   'src/third_party/usrsctp/usrsctplib':
     Var('chromium_git') + '/external/github.com/sctplab/usrsctp' + '@' + '0bd8b8110bc1a388649e504de1e673114e91013f',
 
-  'src/third_party/vulkan-deps': '{chromium_git}/vulkan-deps@aa612f42d9e203fe7253e099e3287d4cee80a996',
+  'src/third_party/vulkan-deps': '{chromium_git}/vulkan-deps@refs/heads/chromium/4502',
 
   'src/third_party/vulkan_memory_allocator':
     Var('chromium_git') + '/external/github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git' + '@' + '732a76d9d3c70d6aa487216495eeb28518349c3a',
@@ -1563,7 +1563,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + '239db71432f4e4fe1f6192a7d54717701ef84f66',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '4a679eb0c036aa4aa5ad526fb0da0048354af31b',
+    Var('webrtc_git') + '/src.git' + '@' + 'refs/branch-heads/4502',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),
@@ -1624,7 +1624,7 @@ deps = {
     Var('chromium_git') + '/v8/v8.git' + '@' +  Var('v8_revision'),
 
   'src-internal': {
-    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@aaf4eec47e548d7e8291492a29f8db30f4db4331',
+    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@refs/heads/chromium/4502',
     'condition': 'checkout_src_internal',
   },