Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/787ae8b..b1d6c28

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/13a8b37..8a42ad3

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/7e69312..b3d3f59

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

Change-Id: I7bf829336fd7ded9b95573fc9b95c4988d36d8f6
Reviewed-on: https://chromium-review.googlesource.com/936226
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51541}

DEPS

@@ -13,7 +13,7 @@ vars = {
 
 deps = {
   'v8/build':
-    Var('chromium_url') + '/chromium/src/build.git' + '@' + '787ae8b3842de36ffa24997e7d0bc4422c2feb6b',
+    Var('chromium_url') + '/chromium/src/build.git' + '@' + 'b1d6c28b4a64128ad856d9da458afda2861fddab',
   'v8/tools/gyp':
     Var('chromium_url') + '/external/gyp.git' + '@' + 'd61a9397e668fa9843c4aa7da9e79460fe590bfb',
   'v8/third_party/icu':
@@ -33,7 +33,7 @@ deps = {
     'condition': 'checkout_android',
   },
   'v8/third_party/catapult': {
-    'url': Var('chromium_url') + '/catapult.git' + '@' + '13a8b379801a2265f1db14309816951fc2710c18',
+    'url': Var('chromium_url') + '/catapult.git' + '@' + '8a42ad3cb185e340c32b20f657980fd057e3769f',
     'condition': 'checkout_android',
   },
   'v8/third_party/colorama/src': {
@@ -59,7 +59,7 @@ deps = {
   'v8/test/test262/harness':
     Var('chromium_url') + '/external/github.com/test262-utils/test262-harness-py.git' + '@' + '0f2acdd882c84cff43b9d60df7574a1901e2cdcd',
   'v8/tools/clang':
-    Var('chromium_url') + '/chromium/src/tools/clang.git' + '@' + '7e6931239f20219e3c993b7f8d864217bdbe925e',
+    Var('chromium_url') + '/chromium/src/tools/clang.git' + '@' + 'b3d3f5920b161f95f1a8ffe08b75c695e0edf350',
   'v8/tools/luci-go':
     Var('chromium_url') + '/chromium/src/tools/luci-go.git' + '@' + 'ff0709d4283b1f233dcf0c9fec1672c6ecaed2f1',
   'v8/test/wasm-js':