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 = {
   "chromium_url": "https://chromium.googlesource.com",
 }
 
 deps = {
   "v8/build":
-    Var("chromium_url") + "/chromium/src/build.git" + "@" + "53448a6ec03d522155fa76cb8732b89c2a5773b9",
+    Var("chromium_url") + "/chromium/src/build.git" + "@" + "50196c9d9b9e1dd995c88b9ae8409e0c31d62fa6",
   "v8/tools/gyp":
     Var("chromium_url") + "/external/gyp.git" + "@" + "e7079f0e0e14108ab0dba58728ff219637458563",
   "v8/third_party/icu":
     Var("chromium_url") + "/chromium/deps/icu.git" + "@" + "dda089a98a4f1512a62a68e8fc47a98aa6d2f963",
   "v8/third_party/instrumented_libraries":
     Var("chromium_url") + "/chromium/src/third_party/instrumented_libraries.git" + "@" + "45f5814b1543e41ea0be54c771e3840ea52cca4a",
   "v8/buildtools":
     Var("chromium_url") + "/chromium/buildtools.git" + "@" + "55ad626b08ef971fd82a62b7abb325359542952b",
   "v8/base/trace_event/common":
     Var("chromium_url") + "/chromium/src/base/trace_event/common.git" + "@" + "06294c8a4a6f744ef284cd63cfe54dbf61eea290",
@@ skipping 10 matching lines @@
   "v8/test/benchmarks/data":
     Var("chromium_url") + "/v8/deps/third_party/benchmarks.git" + "@" + "05d7188267b4560491ff9155c5ee13e207ecd65f",
   "v8/test/mozilla/data":
     Var("chromium_url") + "/v8/deps/third_party/mozilla-tests.git" + "@" + "f6c578a10ea707b1a8ab0b88943fe5115ce2b9be",
   "v8/test/simdjs/data": Var("chromium_url") + "/external/github.com/tc39/ecmascript_simd.git" + "@" + "baf493985cb9ea7cdbd0d68704860a8156de9556",
   "v8/test/test262/data":
     Var("chromium_url") + "/external/github.com/tc39/test262.git" + "@" + "fb61ab44eb1bbc2699d714fc00e33af2a19411ce",
   "v8/test/test262/harness":
     Var("chromium_url") + "/external/github.com/test262-utils/test262-harness-py.git" + "@" + "cbd968f54f7a95c6556d53ba852292a4c49d11d8",
   "v8/tools/clang":
-    Var("chromium_url") + "/chromium/src/tools/clang.git" + "@" + "caccf42b8c21eade8826506734dec19a3da32ef3",
+    Var("chromium_url") + "/chromium/src/tools/clang.git" + "@" + "53bdedc7a79ddb513dddeb3aea99935893c2143d",
 }
 
 deps_os = {
   "android": {
     "v8/third_party/android_tools":
       Var("chromium_url") + "/android_tools.git" + "@" + "b43a6a289a7588b1769814f04dd6c7d7176974cc",
     "v8/third_party/catapult":
-      Var('chromium_url') + "/external/github.com/catapult-project/catapult.git" + "@" + "11d3d44fb9d22dea38862472a620d4f0be67ae97",
+      Var('chromium_url') + "/external/github.com/catapult-project/catapult.git" + "@" + "0b7222ff3002f4f25c3126628b850d9df63c6fe8",
   },
   "win": {
     "v8/third_party/cygwin":
       Var("chromium_url") + "/chromium/deps/cygwin.git" + "@" + "c89e446b273697fadf3a10ff1007a97c0b7de6df",
   }
 }
 
 recursedeps = [
   "v8/buildtools",
   "v8/third_party/android_tools",
@@ skipping 228 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", "--running-as-hook"],
   },
 ]