Avoid re-starting a ExternalCCResultFetcher if a previous has finished or timed out.

ios/chrome/browser/about_flags.mm

 // Copyright 2012 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.
 
 // Implementation of about_flags for iOS that sets flags based on experimental
 // settings.
 
 #include "ios/chrome/browser/about_flags.h"
 
 #include <stddef.h>
@@ skipping 61 matching lines @@
 };
 
 // Add all switches from experimental flags to |command_line|.
 void AppendSwitchesFromExperimentalSettings(base::CommandLine* command_line) {
   NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
 
   // GAIA staging environment.
   NSString* kGAIAEnvironment = @"GAIAEnvironment";
   NSString* gaia_environment = [defaults stringForKey:kGAIAEnvironment];
   if ([gaia_environment isEqualToString:@"Staging"]) {
+    command_line->AppendSwitchASCII(switches::kGaiaUrl,
+                                    BUILDFLAG(GOOGLE_STAGING_OAUTH_URL));
     command_line->AppendSwitchASCII(switches::kGoogleApisUrl,
                                     BUILDFLAG(GOOGLE_STAGING_API_URL));
     command_line->AppendSwitchASCII(switches::kLsoUrl,
                                     BUILDFLAG(GOOGLE_STAGING_LSO_URL));
   } else if ([gaia_environment isEqualToString:@"Test"]) {
     command_line->AppendSwitchASCII(switches::kGaiaUrl,
                                     BUILDFLAG(GOOGLE_TEST_OAUTH_URL));
     command_line->AppendSwitchASCII(switches::kGoogleApisUrl,
                                     BUILDFLAG(GOOGLE_TEST_API_URL));
     command_line->AppendSwitchASCII(switches::kLsoUrl,
@@ skipping 226 matching lines @@
 }
 
 namespace testing {
 
 const flags_ui::FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing