chore: add electon deps to //src gitignore (#35065)

patches/chromium/.patches

@@ -113,3 +113,4 @@ feat_filter_out_non-shareable_windows_in_the_current_application_in.patch
 fix_allow_guest_webcontents_to_enter_fullscreen.patch
 disable_freezing_flags_after_init_in_node.patch
 short-circuit_permissions_checks_in_mediastreamdevicescontroller.patch
+chore_add_electron_deps_to_gitignores.patch

patches/chromium/chore_add_electron_deps_to_gitignores.patch

@@ -0,0 +1,47 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Samuel Attard <sattard@salesforce.com>
+Date: Tue, 26 Jul 2022 00:05:29 -0700
+Subject: chore: add electron deps to gitignores
+
+Makes things like "git status" quicker when developing electron locally
+
+diff --git a/.gitignore b/.gitignore
+index d68a1b2dd91704a00be9cce6ccfa5daf7da35e1a..ab30dd802543491352d3b407f12127c04742d1ab 100644
+--- a/.gitignore
++++ b/.gitignore
+@@ -229,6 +229,7 @@ vs-chromium-project.txt
+ /delegate_execute
+ /device/serial/device_serial_mojo.xml
+ /docs/website
++/electron
+ /google_apis/gcm/gcm.xml
+ /google_apis/internal
+ /googleurl
+diff --git a/third_party/.gitignore b/third_party/.gitignore
+index 63611fc675a17af16dc20cbd9b20e28db63a7ead..eb369ac8b3bc0c2344491438b67e1618d2efb244 100644
+--- a/third_party/.gitignore
++++ b/third_party/.gitignore
+@@ -83,6 +83,7 @@
+ /directxsdk
+ /dom_distiller_js/dist
+ /eigen3/src
++/electron_node
+ /elfutils/src
+ /emoji-segmenter/src
+ /emoji-metadata/src
+@@ -179,6 +180,7 @@
+ /mocha
+ /mockito/src
+ /nacl_sdk_binaries/
++/nan
+ /nasm
+ /nearby/src
+ /neon_2_sse/src
+@@ -242,6 +244,7 @@
+ /speex
+ /sqlite/src
+ /sqlite4java/lib/
++/squirrel.mac
+ /subresource-filter-ruleset/data/UnindexedRules
+ /swift-format
+ /swiftshader/