hid: Revoke WebView guest permissions on reset

WebHID permissions granted to embedded guest origins in <webview> and
<controlledframe> are maintained in-memory within WebViewChooserContext.
When site settings or profiles are reset via ProfileResetter or Clear
Browsing Data (DATA_TYPE_CONTENT_SETTINGS), HostContentSettingsMap is
cleared directly.

ObjectPermissionContextBase observes HostContentSettingsMap and triggers
the virtual hook RevokeEphemeralPermissions() whenever HID_CHOOSER_DATA
settings are cleared.

This CL updates HidChooserContext::RevokeEphemeralPermissions() to
delegate ephemeral revocation to WebViewChooserContext and return the
revoked guest origins. ObjectPermissionContextBase then automatically
dispatches OnPermissionRevoked notifications to observers, closing any
active device connections. This CL also enforces embedder permission
verification during guest permission checks in
WebViewChooserContext::HasDevicePermission().

Bug: 553249498
Change-Id: I2bc7d092d325e9c538d309d8e8f4c154e884d8c9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8339052
Reviewed-by: Alvin Ji <alvinji@chromium.org>
Commit-Queue: Rob Pitkin <robpitkin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1710322}