Make FormFetcher a PasswordStoreConsumer

components/password_manager/core/browser/password_store.h

Index: components/password_manager/core/browser/password_store.h
diff --git a/components/password_manager/core/browser/password_store.h b/components/password_manager/core/browser/password_store.h
index d7998e40efd3f901b6c443f1eeba9abfeeb7efe8..fe0ec7acf85c39aa3ea8dfa97f747d66fa18ede3 100644
--- a/components/password_manager/core/browser/password_store.h
+++ b/components/password_manager/core/browser/password_store.h
@@ -71,6 +71,10 @@ class PasswordStore : protected PasswordStoreSync,
                const std::string& signon_realm,
                const GURL& origin);
     explicit FormDigest(const autofill::PasswordForm& form);
+    FormDigest(const FormDigest& other);
+    FormDigest(FormDigest&& other);
+    FormDigest& operator=(const FormDigest& other);
+    FormDigest& operator=(FormDigest&& other);
     bool operator==(const FormDigest& other) const;
 
     autofill::PasswordForm::Scheme scheme;