Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/08ca0e2..47732a6

Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+log/52495f0..6539cc7

TBR=machenbach@chromium.org,hablich@chromium.org

Change-Id: I03ed954a3a69e73cbe7448188a794f16cf827c0d
Reviewed-on: https://chromium-review.googlesource.com/562997Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46462}

DEPS

@@ -8,7 +8,7 @@ vars = {
 
 deps = {
   "v8/build":
-    Var("chromium_url") + "/chromium/src/build.git" + "@" + "08ca0e267f81614a44352044aba3cd329250c4ed",
+    Var("chromium_url") + "/chromium/src/build.git" + "@" + "47732a6a8b2869493b8713547de9d0917940c2cf",
   "v8/tools/gyp":
     Var("chromium_url") + "/external/gyp.git" + "@" + "eb296f67da078ec01f5e3a9ea9cdc6d26d680161",
   "v8/third_party/icu":
@@ -48,7 +48,7 @@ deps_os = {
     "v8/third_party/android_tools":
       Var("chromium_url") + "/android_tools.git" + "@" + "e9d4018e149d50172ed462a7c21137aa915940ec",
     "v8/third_party/catapult":
-      Var('chromium_url') + "/external/github.com/catapult-project/catapult.git" + "@" + "52495f00b0cc1197c00e89ec6495333eb8489063",
+      Var('chromium_url') + "/external/github.com/catapult-project/catapult.git" + "@" + "6539cc70d9e1b8b9c67a3b7ff6a1a0da7a5a961d",
   },
 }