Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/220748c..b6996c4

Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+log/49fffef..bd05965

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

Change-Id: I4a91e2bc240a532af977a3ed447a00497a3bb7af
Reviewed-on: https://chromium-review.googlesource.com/608948Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47263}

DEPS

@@ -8,7 +8,7 @@ vars = {
 
 deps = {
   "v8/build":
-    Var("chromium_url") + "/chromium/src/build.git" + "@" + "220748ca2c44ffd13a238ffcc3d938cda78c89c4",
+    Var("chromium_url") + "/chromium/src/build.git" + "@" + "b6996c4c64c9d223d2215de793dbd403a3e653be",
   "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" + "@" + "49fffef9824d85d89e1a108e23298fbb3cfe4a69",
+      Var('chromium_url') + "/external/github.com/catapult-project/catapult.git" + "@" + "bd05965e45572ae06d1a7139759a85a3d9a1a27c",
   },
 }