FamilyInfoFetcher: Use kid.family.readonly scope instead of kid.family

chrome/browser/supervised_user/child_accounts/family_info_fetcher.cc

Index: chrome/browser/supervised_user/child_accounts/family_info_fetcher.cc
diff --git a/chrome/browser/supervised_user/child_accounts/family_info_fetcher.cc b/chrome/browser/supervised_user/child_accounts/family_info_fetcher.cc
index 028aa8b1f42bb7dcb6df10188e67b66b435f564d..63211fe48f5178e5b7f1c305d6566e780a6afbd0 100644
--- a/chrome/browser/supervised_user/child_accounts/family_info_fetcher.cc
+++ b/chrome/browser/supervised_user/child_accounts/family_info_fetcher.cc
@@ -15,7 +15,7 @@
 const char kFamilyApiUrl[] = "https://www.googleapis.com/kidsmanagement/v1/";
 const char kGetFamilyProfileApiSuffix[] = "families/mine?alt=json";
 const char kGetFamilyMembersApiSuffix[] = "families/mine/members?alt=json";
-const char kScope[] = "https://www.googleapis.com/auth/kid.family";
+const char kScope[] = "https://www.googleapis.com/auth/kid.family.readonly";
 const char kAuthorizationHeaderFormat[] = "Authorization: Bearer %s";
 const int kNumRetries = 1;