[Offline Prefetch] Send GeneratePageBundleRequest to the server

components/offline_pages/core/prefetch/prefetch_request_fetcher.h

 // Copyright 2017 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 COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_REQUEST_FETCHER_H_
 #define COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_REQUEST_FETCHER_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "components/offline_pages/core/prefetch/prefetch_types.h"
 #include "net/url_request/url_fetcher_delegate.h"
 
 class GURL;
 namespace net {
 class URLRequestContextGetter;
 }
 
-namespace offline_prefetch {
+namespace offline_pages {
 
 class PrefetchRequestFetcher : public net::URLFetcherDelegate {
  public:
-  enum class Status {
-    // Request completed successfully.
-    SUCCESS,
-    // Request failed due to to local network problem, unrelated to server load
-    // levels. The caller will simply reschedule the retry in the next available
-    // WiFi window after 15 minutes have passed.
-    SHOULD_RETRY_WITHOUT_BACKOFF,
-    // Request failed probably related to transient server problems. The caller
-    // will reschedule the retry with backoff included.
-    SHOULD_RETRY_WITH_BACKOFF,
-    // Request failed with error indicating that the server no longer knows how
-    // to service a request. The caller will prevent network requests for the
-    // period of 1 day.
-    SHOULD_SUSPEND
-  };
+  using FinishedCallback = base::Callback<void(PrefetchRequestStatus status,
+                                               const std::string& data)>;
 
-  using FinishedCallback =
-      base::Callback<void(Status status, const std::string& data)>;
-
-  PrefetchRequestFetcher(
-      const GURL& url,
-      const std::string& message,
-      scoped_refptr<net::URLRequestContextGetter> request_context_getter,
-      const FinishedCallback& callback);
+  PrefetchRequestFetcher(const GURL& url,
+                         const std::string& message,
+                         net::URLRequestContextGetter* request_context_getter,
+                         const FinishedCallback& callback);
   ~PrefetchRequestFetcher() override;
 
   // URLFetcherDelegate implementation.
   void OnURLFetchComplete(const net::URLFetcher* source) override;
 
  private:
-  Status ParseResponse(const net::URLFetcher* source, std::string* data);
+  PrefetchRequestStatus ParseResponse(const net::URLFetcher* source,
+                                      std::string* data);
 
   scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
   std::unique_ptr<net::URLFetcher> url_fetcher_;
   FinishedCallback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(PrefetchRequestFetcher);
 };
 
-}  // namespace offline_prefetch
+}  // namespace offline_pages
 
 #endif  // COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_REQUEST_FETCHER_H_