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

chrome/browser/supervised_user/child_accounts/family_info_fetcher.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/supervised_user/child_accounts/family_info_fetcher.h"
 
 #include "base/json/json_reader.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
 
 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;
 
 const char kIdFamily[] = "family";
 const char kIdFamilyId[] = "familyId";
 const char kIdProfile[] = "profile";
 const char kIdFamilyName[] = "name";
 const char kIdMembers[] = "members";
 const char kIdUserId[] = "userId";
 const char kIdRole[] = "role";
@@ skipping 282 matching lines @@
     consumer_->OnFailure(SERVICE_ERROR);
     return;
   }
   std::vector<FamilyMember> members;
   if (!ParseMembers(members_list, &members)){
     consumer_->OnFailure(SERVICE_ERROR);
     return;
   }
   consumer_->OnGetFamilyMembersSuccess(members);
 }