chore: bump chromium to 4b6692e4cc2839729bb7ac009586a (master) (#21864)

* chore: bump chromium in DEPS to a1ea0d7aedd6b5fe58fbabfa3b05aa8ee41304ff

* update patches

* update extensions code

* Remove WebPoint

2007474

* fix build

* chore: bump chromium in DEPS to 9351e26c2a3714f8bbb10789c71bb51b0b494c75

* update patches

* Remove error description from the DidFailLoadWithError message

2011280

* Make SimpleNetworkHintsHandlerImpl use the right NetworkIsolationKey

1994430

* Rename libgtkui to gtk

2011683

* [metrics] Remove histogram Startup.WarmStartTimeFromRemoteProcessStart*.

2003211

* fix requestSingleInstanceLock test

* chore: bump chromium in DEPS to a813567a4f17ea08292c2b26fa10d0ffd47010d9

* chore: bump chromium in DEPS to f0aca2de536ceecd6eb66e928051d11e6d11991f

* chore: bump chromium in DEPS to 865556af6d0c9d990f5b1816cb792f7c3859667b

* chore: bump chromium in DEPS to 98538fdd28c4b6692e4cc2839729bb7ac009586a

* update patches

* fix broken tests

* Update node tests for v8 changes

* Update node patches for test failures

* Update for number of tests

Co-authored-by: Jeremy Apthorp <nornagon@nornagon.net>
Co-authored-by: John Kleinschmidt <jkleinsc@github.com>

patches/chromium/gtk_visibility.patch

@@ -6,7 +6,7 @@ Subject: gtk_visibility.patch
 Allow electron to depend on GTK in the GN build.
 
 diff --git a/build/config/linux/gtk/BUILD.gn b/build/config/linux/gtk/BUILD.gn
-index d78f7407c179fe44180800a234e9461c56849402..dae8fa63037803ebaf2e04fb2b9547d2db7ba29c 100644
+index a58b089869b7db19d0af81de7120c5af964efc2f..ca4d44ca2a659af9c2c2781c7e9bd4a6b8b70d6c 100644
 --- a/build/config/linux/gtk/BUILD.gn
 +++ b/build/config/linux/gtk/BUILD.gn
 @@ -26,6 +26,7 @@ group("gtk") {