Update permission warning for contentSettings API

components/content_settings/core/common/content_settings_pattern.cc

Index: components/content_settings/core/common/content_settings_pattern.cc
diff --git a/components/content_settings/core/common/content_settings_pattern.cc b/components/content_settings/core/common/content_settings_pattern.cc
index a83a6959a02240575eae95fe7168e4ea75c644bc..899f9d64ea33fd1630c770e72895421f805d0b12 100644
--- a/components/content_settings/core/common/content_settings_pattern.cc
+++ b/components/content_settings/core/common/content_settings_pattern.cc
@@ -14,6 +14,7 @@
 #include "base/strings/string_util.h"
 #include "components/content_settings/core/common/content_settings_pattern_parser.h"
 #include "net/base/url_util.h"
+#include "third_party/re2/src/re2/re2.h"
 #include "url/gurl.h"
 
 namespace {
@@ -533,6 +534,15 @@ ContentSettingsPattern::ContentSettingsPattern(
       is_valid_(valid) {
 }
 
+bool ContentSettingsPattern::IsExtensionUrlWildcard() const {
+  if (!parts_.is_scheme_wildcard && parts_.scheme != "chrome-extension")
+    return false;
+  const char kExtensionIdRegex[] = "[a-zA-Z]{32}";
+
+  return parts_.has_domain_wildcard ||
+         RE2::FullMatch(parts_.host, kExtensionIdRegex);
+}
+
 bool ContentSettingsPattern::Matches(
     const GURL& url) const {
   // An invalid pattern matches nothing.