feat: restore emulated geolocation data per user context after per context is removed

Author: sadym-chromium

index.bs

@@ -6170,7 +6170,11 @@ The [=remote end steps=] with |command parameters| are:
 
    1. For each |user context| of |user contexts|:
 
-      1. [=map/Set=] [=geolocation overrides map=][|user context|] to |emulated position data|.
+      1. If |emulated position data| is null, remove the |user context| from
+         [=geolocation overrides map=].
+
+      1. Otherwise, [=map/set=] [=geolocation overrides map=][|user context|] to
+         |emulated position data|.
 
       1. [=list/For each=] |top-level traversable| of the list of all [=/top-level traversables=]
          whose [=associated user context=] is |user context|:
@@ -6179,7 +6183,13 @@ The [=remote end steps=] with |command parameters| are:
 
 1. For each |navigable| of |navigables|:
 
-   1. [=Set emulated position data=] with |navigable| and |emulated position data|.
+   1. Let |user context| be |navigable|'s [=associated user context=].
+
+   1. If |emulated position data| is null and [=geolocation overrides map=] [=map/contains=]
+      |user context|, [=set emulated position data=] with |navigable| and
+      [=geolocation overrides map=][|user context|].
+
+   1. Otherwise, [=set emulated position data=] with |navigable| and |emulated position data|.
 
 1. Return [=success=] with data null.