Update V8 DEPS.

Rolling v8/third_party/icu to d319ad9e25e8045f051dcd30bd5835f99936af6c

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1021953002

Cr-Commit-Position: refs/heads/master@{#27327}

DEPS

@@ -10,7 +10,7 @@ deps = {
   "v8/build/gyp":
     Var("git_url") + "/external/gyp.git" + "@" + "d174d75bf69c682cb62af9187879e01513b35e52",
   "v8/third_party/icu":
-    Var("git_url") + "/chromium/deps/icu.git" + "@" + "eda9e75b1fa17f57ffa369ee3543a2301b68d0a9",
+    Var("git_url") + "/chromium/deps/icu.git" + "@" + "d319ad9e25e8045f051dcd30bd5835f99936af6c",
   "v8/buildtools":
     Var("git_url") + "/chromium/buildtools.git" + "@" + "3b302fef93f7cc58d9b8168466905237484b2772",
   "v8/testing/gtest":