chromium/ios/chrome/search_widget_extension/appex/entitlements/external/search_widget_extension.appex.entitlements

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>application-identifier</key>
	<string>$(AppIdentifierPrefix)$(CFBundleIdentifier)</string>
	<key>com.apple.security.application-groups</key>
	<array>
		<string>group.${IOS_BUNDLE_ID_PREFIX}.chrome</string>
		<string>group.${IOS_BUNDLE_ID_PREFIX}.common</string>
	</array>
</dict>
</plist>