[Prototype] Delete Google service worker caches on Android signout

components/google/core/browser/google_util.h

Index: components/google/core/browser/google_util.h
diff --git a/components/google/core/browser/google_util.h b/components/google/core/browser/google_util.h
index d2526b22b381cbef561d025069b9ddf5a0142fdc..d4730ef29e666bd3e515607f3c132a0574b953a2 100644
--- a/components/google/core/browser/google_util.h
+++ b/components/google/core/browser/google_util.h
@@ -8,6 +8,7 @@
 #define COMPONENTS_GOOGLE_CORE_BROWSER_GOOGLE_UTIL_H_
 
 #include <string>
+#include <vector>
 
 #include "base/strings/string_piece.h"
 
@@ -112,6 +113,14 @@ bool IsYoutubeDomainUrl(const GURL& url,
                         SubdomainPermission subdomain_permission,
                         PortPermission port_permission);
 
+// Returns the list of all Google's registerable domains, i.e. domains named
+// google.<eTLD> owned by Google.
+// TODO(msramek): This is currently only used to ensure the deletion of Google
+// service workers on signout. Remove this once we have other options to do it,
+// such as service workers discovering that signin cookies are missing and
+// unregistering themselves.
+const std::vector<std::string>& GetGoogleRegistrableDomains();
+
 }  // namespace google_util
 
 #endif  // COMPONENTS_GOOGLE_CORE_BROWSER_GOOGLE_UTIL_H_