Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/2887ee5..48a2b7b

Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+log/68a8df6..7149cbf

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

Change-Id: Ib8667ab4ff0b2310f725a0942732ac861d25b57a
Reviewed-on: https://chromium-review.googlesource.com/640350Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47658}

DEPS

@@ -8,7 +8,7 @@ vars = {
 
 deps = {
   "v8/build":
-    Var("chromium_url") + "/chromium/src/build.git" + "@" + "2887ee57f5ea22470071726175a176eb23ca88a3",
+    Var("chromium_url") + "/chromium/src/build.git" + "@" + "48a2b7b39debc7c77c868c9ddb0a360af1ebc367",
   "v8/tools/gyp":
     Var("chromium_url") + "/external/gyp.git" + "@" + "d61a9397e668fa9843c4aa7da9e79460fe590bfb",
   "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" + "@" + "68a8df67789e065a2a762dc1401627a132fc203f",
+      Var('chromium_url') + "/external/github.com/catapult-project/catapult.git" + "@" + "7149cbfdfd26a5dd8e5d96cbb1da9356e2813a5d",
   },
 }