Update content settings to new vector icon format.

ui/gfx/vector_icons/BUILD.gn

Index: ui/gfx/vector_icons/BUILD.gn
diff --git a/ui/gfx/vector_icons/BUILD.gn b/ui/gfx/vector_icons/BUILD.gn
index 190ff1d500786271ba53b049a50a115bc0b6ec24..e5c9ba386bdf02e22d3cd35fc164b631f8ad24bc 100644
--- a/ui/gfx/vector_icons/BUILD.gn
+++ b/ui/gfx/vector_icons/BUILD.gn
@@ -17,26 +17,17 @@ action("aggregate_vector_icons") {
     "account_child.icon",
     "account_child_circle.icon",
     "account_circle.icon",
-    "blocked_badge.icon",
     "business.icon",
     "check_circle.1x.icon",
     "check_circle.icon",
     "close_all.icon",
-    "code.icon",
-    "cookie.icon",
     "default_favicon.icon",
     "eol.icon",
-    "extension.icon",
-    "file_download.icon",
     "fullscreen.icon",
     "help_outline.icon",
-    "image.icon",
     "info_outline.icon",
     "lock.icon",
-    "midi.icon",
-    "mixed_content.icon",
     "mode_edit.icon",
-    "my_location.icon",
     "notifications.icon",
     "notifications_off.icon",
 
@@ -46,18 +37,14 @@ action("aggregate_vector_icons") {
     "pdf.1x.icon",
     "pdf.icon",
     "photo_camera.icon",
-    "protocol_handler.icon",
     "remove_box.icon",
     "remove_circle.icon",
     "settings.icon",
-    "subresource_filter_active.icon",
     "supervisor_account.icon",
     "supervisor_account_circle.icon",
     "sync_problem.icon",
     "user_account_avatar.icon",
-    "videocam.icon",
     "warning.icon",
-    "warning_badge.icon",
     "web.icon",
   ]