deps: update V8 to 7.0.276.20

PR-URL: #22754
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

deps/v8/.gitignore

@@ -36,6 +36,7 @@
 /_*
 /build
 /buildtools
+/check-header-includes
 /hydrogen.cfg
 /obj
 /out
@@ -68,6 +69,7 @@
 !/third_party/googletest/src/googletest/include/gtest
 /third_party/googletest/src/googletest/include/gtest/*
 !/third_party/googletest/src/googletest/include/gtest/gtest_prod.h
+!/third_party/v8
 /tools/clang
 /tools/gcmole/gcmole-tools
 /tools/gcmole/gcmole-tools.tar.gz

deps/v8/.vpython

@@ -1,7 +1,7 @@
 # This is a vpython "spec" file.
 #
 # It describes patterns for python wheel dependencies of the python scripts in
-# the chromium repo, particularly for dependencies that have compiled components
+# the V8 repo, particularly for dependencies that have compiled components
 # (since pure-python dependencies can be easily vendored into third_party).
 #
 # When vpython is invoked, it finds this file and builds a python VirtualEnv,

deps/v8/AUTHORS

@@ -17,6 +17,7 @@ Opera Software ASA <*@opera.com>
 Intel Corporation <*@intel.com>
 MIPS Technologies, Inc. <*@mips.com>
 Imagination Technologies, LLC <*@imgtec.com>
+Wave Computing, Inc. <*@wavecomp.com>
 Loongson Technology Corporation Limited <*@loongson.cn>
 Code Aurora Forum <*@codeaurora.org>
 Home Jinni Inc. <*@homejinni.com>
@@ -100,6 +101,7 @@ Kang-Hao (Kenny) Lu <kennyluck@csail.mit.edu>
 Karl Skomski <karl@skomski.com>
 Kevin Gibbons <bakkot@gmail.com>
 Kris Selden <kris.selden@gmail.com>
+Kyounga Ra <kyounga@alticast.com>
 Loo Rong Jie <loorongjie@gmail.com>
 Luis Reis <luis.m.reis@gmail.com>
 Luke Zarko <lukezarko@gmail.com>