Report redirect UMA in offline interceptor

chrome/browser/android/offline_pages/offline_page_request_job.h

 // Copyright 2016 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.
 
 #ifndef CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_REQUEST_JOB_H_
 #define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_REQUEST_JOB_H_
 
 #include <memory>
 
 #include "base/memory/ref_counted.h"
@@ skipping 32 matching lines @@
     SHOW_OFFLINE_ON_FLAKY_NETWORK,
     PAGE_NOT_FOUND_ON_FLAKY_NETWORK,
     SHOW_OFFLINE_ON_PROHIBITIVELY_SLOW_NETWORK,
     PAGE_NOT_FOUND_ON_PROHIBITIVELY_SLOW_NETWORK,
     PAGE_NOT_FRESH_ON_PROHIBITIVELY_SLOW_NETWORK,
     SHOW_OFFLINE_ON_CONNECTED_NETWORK,
     PAGE_NOT_FOUND_ON_CONNECTED_NETWORK,
     NO_TAB_ID,
     NO_WEB_CONTENTS,
     SHOW_NET_ERROR_PAGE,
+    REDIRECTED_ON_DISCONNECTED_NETWORK,
+    REDIRECTED_ON_FLAKY_NETWORK,
+    REDIRECTED_ON_PROHIBITIVELY_SLOW_NETWORK,
+    REDIRECTED_ON_CONNECTED_NETWORK,
     AGGREGATED_REQUEST_RESULT_MAX
   };
 
   // Delegate that allows tests to overwrite certain behaviors.
   class Delegate {
    public:
     using TabIdGetter = base::Callback<bool(content::WebContents*, int*)>;
 
     virtual ~Delegate() {}
 
@@ skipping 52 matching lines @@
   previews::PreviewsDecider* previews_decider_;
 
   base::WeakPtrFactory<OfflinePageRequestJob> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OfflinePageRequestJob);
 };
 
 }  // namespace offline_pages
 
 #endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_REQUEST_JOB_H_