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":
-    Var("git_url") + "/chromium/src/build.git" + "@" + "452f5acf78e953dc1829c334ee06d38a05e2ef18",
+    Var("git_url") + "/chromium/src/build.git" + "@" + "1054b60d5e758646a073b0363f3629fa2d953de8",
   "v8/tools/gyp":
     Var("git_url") + "/external/gyp.git" + "@" + "e7079f0e0e14108ab0dba58728ff219637458563",
   "v8/third_party/icu":
     Var("git_url") + "/chromium/deps/icu.git" + "@" + "ef5c735307d0f86c7622f69620994c9468beba99",
   "v8/third_party/instrumented_libraries":
     Var("git_url") + "/chromium/src/third_party/instrumented_libraries.git" + "@" + "f15768d7fdf68c0748d20738184120c8ab2e6db7",
   "v8/buildtools":
     Var("git_url") + "/chromium/buildtools.git" + "@" + "1b96e1a41d3d22b24ee8da769c20849e9a002ed2",
   "v8/base/trace_event/common":
     Var("git_url") + "/chromium/src/base/trace_event/common.git" + "@" + "315bf1e2d45be7d53346c31cfcc37424a32c30c8",
   "v8/platform/inspector_protocol":
     Var("git_url") + "/chromium/src/third_party/WebKit/Source/platform/inspector_protocol.git" + "@" + "f49542089820a34a9a6e33264e09b73779407512",
   "v8/tools/mb":
-    Var('git_url') + '/chromium/src/tools/mb.git' + '@' + "6594b0cbcc2fb1da0ca90e9e5f2b01fc6e576a99",
+    Var('git_url') + '/chromium/src/tools/mb.git' + '@' + "0bee3440355ce5cf573b41999b2cbc0e1bcdc415",
   "v8/tools/swarming_client":
     Var('git_url') + '/external/swarming.client.git' + '@' + "7f63a272f7d9785ce41b6d10bb3106c49a968e57",
   "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",
@@ skipping 205 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/gypfiles/gyp_v8"],
   },
 ]