Update V8 DEPS.

DEPS

 # Note: The buildbots evaluate this file with CWD set to the parent
 # directory and assume that the root of the checkout is in ./v8/, so
 # all paths in here must match this assumption.
 
 vars = {
   "git_url": "https://chromium.googlesource.com",
 }
 
 deps = {
   "v8/build/gyp":
     Var("git_url") + "/external/gyp.git" + "@" + "aa0301be5a241c2972f90ce2a08097b63c916390",
   "v8/third_party/icu":
     Var("git_url") + "/chromium/deps/icu.git" + "@" + "8f91ea3a7e0413df3312204058da856058a8099b",
   "v8/buildtools":
-    Var("git_url") + "/chromium/buildtools.git" + "@" + "389b7143dbd63da3a9725e304d286b02805fc170",
+    Var("git_url") + "/chromium/buildtools.git" + "@" + "e27b1f1459452013ce59c9d5dbc93c88982cb76e",
   "v8/base/trace_event/common":
     Var("git_url") + "/chromium/src/base/trace_event/common.git" + "@" + "4b09207e447ae5bd34643b4c6321bee7b76d35f9",
   "v8/tools/swarming_client":
     Var('git_url') + '/external/swarming.client.git' + '@' + "0b908f18767c8304dc089454bc1c91755d21f1f5",
   "v8/testing/gtest":
     Var("git_url") + "/external/github.com/google/googletest.git" + "@" + "6f8a66431cb592dad629028a50b3dd418a408c87",
   "v8/testing/gmock":
     Var("git_url") + "/external/googlemock.git" + "@" + "0421b6f358139f02e102c9c332ce19a33faf75be",
   "v8/test/benchmarks/data":
     Var("git_url") + "/v8/deps/third_party/benchmarks.git" + "@" + "05d7188267b4560491ff9155c5ee13e207ecd65f",
   "v8/test/mozilla/data":
     Var("git_url") + "/v8/deps/third_party/mozilla-tests.git" + "@" + "f6c578a10ea707b1a8ab0b88943fe5115ce2b9be",
   "v8/test/simdjs/data": Var("git_url") + "/external/github.com/tc39/ecmascript_simd.git" + "@" + "c8ef63c728283debc25891123eb00482fee4b8cd",
   "v8/test/test262/data":
     Var("git_url") + "/external/github.com/tc39/test262.git" + "@" + "738a24b109f3fa71be44d5c3701d73141d494510",
   "v8/tools/clang":
-    Var("git_url") + "/chromium/src/tools/clang.git" + "@" + "003558cb5f46e54fdbf5d14507f5c233d2ea91e6",
+    Var("git_url") + "/chromium/src/tools/clang.git" + "@" + "6449b18afaa80290fd8930c3a42c80908505f41f",
 }
 
 deps_os = {
   "android": {
     "v8/third_party/android_tools":
       Var("git_url") + "/android_tools.git" + "@" + "f4c36ad89b2696b37d9cd7ca7d984b691888b188",
   },
   "win": {
     "v8/third_party/cygwin":
       Var("git_url") + "/chromium/deps/cygwin.git" + "@" + "c89e446b273697fadf3a10ff1007a97c0b7de6df",
@@ skipping 157 matching lines @@
     'name': 'clang',
     'pattern': '.',
     'action': ['python', 'v8/tools/clang/scripts/update.py', '--if-needed'],
   },
   {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     "pattern": ".",
     "action": ["python", "v8/build/gyp_v8"],
   },
 ]