Fix "unused variable" warnings.

These were exposed by changing DISALLOW_COPY_AND_ASSIGN to use "= delete", and
must be fixed before that change can land.

See https://codereview.chromium.org/1981053002/ for the full CL.

BUG=447156
TEST=none

Review-Url: https://codereview.chromium.org/1995933002
Cr-Commit-Position: refs/heads/master@{#394911}
diff --git a/chrome/browser/ui/website_settings/website_settings.cc b/chrome/browser/ui/website_settings/website_settings.cc
index 3e3c3e43..1f36d34 100644
--- a/chrome/browser/ui/website_settings/website_settings.cc
+++ b/chrome/browser/ui/website_settings/website_settings.cc
@@ -216,7 +216,9 @@
     : TabSpecificContentSettings::SiteDataObserver(
           tab_specific_content_settings),
       ui_(ui),
+#if !defined(OS_ANDROID)
       web_contents_(web_contents),
+#endif
       show_info_bar_(false),
       site_url_(url),
       site_identity_status_(SITE_IDENTITY_STATUS_UNKNOWN),