Added temporary package for latest Chrome.

www-client/google-chrome/Manifest

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+DIST google-chrome-stable_70.0.3538.77-1_amd64.deb 56058786 BLAKE2B 23bf5652017acbda935b18473be5d1300bb38ae863d3bb1c969fa7ed67ac7228746c1c52e51d6c3020911ceb2fd31535d4c63661c7bef55de3faa9dab4b26639 SHA512 9f76dbaec514ceb51eda6c6001a7befd5ab88716d5ff7405732c4812ba20c9b55ff22b551537439490f65e0f9de1b6ce6f07423b2b267c9a1f3b5517446bb832
+EBUILD google-chrome-70.0.3538.77.ebuild 2706 BLAKE2B c93c05c189187d3b623b8434b571340ee661d685a66e62bc2071e850c36d9c2f68f4ee56bc5c09a31db76b349dc89935a1bfacdce4b39a76924b06c9d57fd41d SHA512 d1e16148ce0892ac1ff4e14061ab2b3f66c4e3fa39e28b051090836ca9f7bc992e24329920e5a2a0c603cb8887eedfa499a2c44f7bd702eb7a1c359676d49bd4
+MISC metadata.xml 517 BLAKE2B dfd840aa3f7845f67c8d6cca488d89845ca7c259eb4df00f8458ae48b1962df91ca8299ef34785f635dcab25b445246e999fbbfef3bdd7117a4ee1b14beca420 SHA512 837becd9e41aca24694cd10a7bddbc5ca501aca983832daccb4c091a7712267ef20051e7a19af02bc3b48eed89c9e18aa0d46ca2411e1d58d045ceb732a180af

www-client/google-chrome/google-chrome-70.0.3538.77.ebuild

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+# Copyright 1999-2018 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+CHROMIUM_LANGS="am ar bg bn ca cs da de el en-GB es es-419 et fa fi fil fr gu he
+	hi hr hu id it ja kn ko lt lv ml mr ms nb nl pl pt-BR pt-PT ro ru sk sl sr
+	sv sw ta te th tr uk vi zh-CN zh-TW"
+
+inherit chromium-2 eutils gnome2-utils pax-utils unpacker xdg-utils
+
+DESCRIPTION="The web browser from Google"
+HOMEPAGE="https://www.google.com/chrome"
+
+if [[ ${PN} == google-chrome ]]; then
+	MY_PN=${PN}-stable
+else
+	MY_PN=${PN}
+fi
+
+MY_P="${MY_PN}_${PV}-1"
+
+SRC_URI="https://dl.google.com/linux/chrome/deb/pool/main/g/${MY_PN}/${MY_P}_amd64.deb"
+
+LICENSE="google-chrome"
+SLOT="0"
+KEYWORDS="-* amd64"
+IUSE="+plugins"
+RESTRICT="bindist mirror strip"
+
+DEPEND=""
+RDEPEND="
+	app-accessibility/at-spi2-atk:2
+	app-arch/bzip2
+	app-misc/ca-certificates
+	dev-libs/atk
+	dev-libs/expat
+	dev-libs/glib:2
+	dev-libs/nspr
+	>=dev-libs/nss-3.26
+	gnome-base/gconf:2
+	media-libs/alsa-lib
+	media-libs/fontconfig
+	media-libs/freetype:2
+	net-print/cups
+	sys-apps/dbus
+	sys-libs/libcap
+	x11-libs/cairo
+	x11-libs/gdk-pixbuf:2
+	x11-libs/gtk+:3[X]
+	>=x11-libs/libX11-1.5.0
+	x11-libs/libXcomposite
+	x11-libs/libXcursor
+	x11-libs/libXdamage
+	x11-libs/libXext
+	x11-libs/libXfixes
+	x11-libs/libXi
+	x11-libs/libXrandr
+	x11-libs/libXrender
+	x11-libs/libXScrnSaver
+	x11-libs/libXtst
+	x11-libs/libxcb
+	x11-libs/pango
+	x11-misc/xdg-utils
+"
+
+QA_PREBUILT="*"
+QA_DESKTOP_FILE="usr/share/applications/google-chrome.*\\.desktop"
+S=${WORKDIR}
+CHROME_HOME="opt/google/chrome${PN#google-chrome}"
+
+pkg_nofetch() {
+	eerror "Please wait 24 hours and sync your tree before reporting a bug for google-chrome fetch failures."
+}
+
+pkg_pretend() {
+	# Protect against people using autounmask overzealously
+	use amd64 || die "google-chrome only works on amd64"
+}
+
+pkg_setup() {
+	chromium_suid_sandbox_check_kernel_config
+}
+
+src_unpack() {
+	:
+}
+
+src_install() {
+	dodir /
+	cd "${ED}" || die
+	unpacker
+
+	rm -r etc usr/share/menu || die
+	mv usr/share/doc/${MY_PN} usr/share/doc/${PF} || die
+
+	pushd "${CHROME_HOME}/locales" > /dev/null || die
+	chromium_remove_language_paks
+	popd > /dev/null || die
+
+	if use plugins ; then
+		local plugins="--extra-plugin-dir=/usr/$(get_libdir)/nsbrowser/plugins"
+		sed -e "/^exec/ i set -- \"${plugins}\" \"\$@\"" \
+			-i "${CHROME_HOME}/${PN}" || die
+	fi
+
+	local size
+	for size in 16 22 24 32 48 64 128 256 ; do
+		newicon -s ${size} "${CHROME_HOME}/product_logo_${size}.png" ${PN}.png
+	done
+
+	pax-mark m "${CHROME_HOME}/chrome"
+}
+
+pkg_preinst() {
+	gnome2_icon_savelist
+}
+
+pkg_postrm() {
+	gnome2_icon_cache_update
+	xdg_desktop_database_update
+}
+
+pkg_postinst() {
+	gnome2_icon_cache_update
+	xdg_desktop_database_update
+}

www-client/google-chrome/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>chromium@gentoo.org</email>
+		<name>Chromium in Gentoo Project</name>
+	</maintainer>
+	<longdescription>
+		Google Chrome is a browser that combines a minimal design with
+		sophisticated technology to make the web faster, safer, and easier.
+	</longdescription>
+	<use>
+		<flag name="plugins">Add system plugins path to launcher</flag>
+	</use>
+</pkgmetadata>