Trigger redirect for offline pages

chrome/browser/android/offline_pages/offline_page_request_job.h

Index: chrome/browser/android/offline_pages/offline_page_request_job.h
diff --git a/chrome/browser/android/offline_pages/offline_page_request_job.h b/chrome/browser/android/offline_pages/offline_page_request_job.h
index 53782a90ffd79cf06ee40e415be809ea9b29cbc6..eee2aa1bc16434287402be0b76c5946b1ba7e8d1 100644
--- a/chrome/browser/android/offline_pages/offline_page_request_job.h
+++ b/chrome/browser/android/offline_pages/offline_page_request_job.h
@@ -5,7 +5,11 @@
 #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"
 #include "base/memory/weak_ptr.h"
+#include "base/time/time.h"
 #include "content/public/browser/resource_request_info.h"
 #include "content/public/common/resource_type.h"
 #include "net/url_request/url_request_file_job.h"
@@ -79,6 +83,11 @@ class OfflinePageRequestJob : public net::URLRequestFileJob {
   // net::URLRequestJob overrides:
   void Start() override;
   void Kill() override;
+  bool IsRedirectResponse(GURL* location, int* http_status_code) override;
+  void GetResponseInfo(net::HttpResponseInfo* info) override;
+  void GetLoadTimingInfo(net::LoadTimingInfo* load_timing_info) const override;
+  bool CopyFragmentOnRedirect(const GURL& location) const override;
+  int GetResponseCode() const override;
 
   void OnOfflineFilePathAvailable(const base::FilePath& offline_file_path);
   void OnOfflineRedirectAvailabe(const GURL& redirected_url);
@@ -97,6 +106,11 @@ class OfflinePageRequestJob : public net::URLRequestFileJob {
 
   std::unique_ptr<Delegate> delegate_;
 
+  // For redirect simulation.
+  scoped_refptr<net::HttpResponseHeaders> fake_headers_for_redirect_;
+  base::TimeTicks receive_redirect_headers_end_;
+  base::Time redirect_response_time_;
+
   // Used to determine if an URLRequest is eligible for offline previews.
   previews::PreviewsDecider* previews_decider_;