Refactoring: Create TranslateScript from TranslateManager

chrome/browser/translate/translate_url_fetcher.h

 // Copyright 2013 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_TRANSLATE_TRANSLATE_URL_FETCHER_H_
 #define CHROME_BROWSER_TRANSLATE_TRANSLATE_URL_FETCHER_H_
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "googleurl/src/gurl.h"
 #include "net/url_request/url_fetcher_delegate.h"
 
 class TranslateURLFetcher : public net::URLFetcherDelegate {
  public:
   // Callback type for Request().
   typedef base::Callback<void(int, bool, const std::string&)> Callback;
 
   // Represents internal state if the fetch is completed successfully.
   enum State {
     IDLE,        // No fetch request was issued.
     REQUESTING,  // A fetch request was issued, but not finished yet.
     COMPLETED,   // The last fetch request was finished successfully.
     FAILED,      // The last fetch request was finished with a failure.
   };
 
   explicit TranslateURLFetcher(int id);
   virtual ~TranslateURLFetcher();
 
+  int max_retry_on_5xx() {
+    return max_retry_on_5xx_;
+  }
+  void set_max_retry_on_5xx(int count) {
+    max_retry_on_5xx_ = count;
+  }
+
+  const std::string& extra_request_header() {
+    return extra_request_header_;
+  }
+  void set_extra_request_header(const std::string& header) {
+    extra_request_header_ = header;
+  }
+
   // Requests to |url|. |callback| will be invoked when the function returns
   // true, and the request is finished asynchronously.
   // Returns false if the previous request is not finished, or the request
   // is omitted due to retry limitation.
   bool Request(const GURL& url, const Callback& callback);
 
   // Gets internal state.
   State state() { return state_; }
 
   // net::URLFetcherDelegate implementation:
@@ skipping 12 matching lines @@
   // URLFetcher instance.
   scoped_ptr<net::URLFetcher> fetcher_;
 
   // Callback passed at Request(). It will be invoked when an asynchronous
   // fetch operation is finished.
   Callback callback_;
 
   // Counts how many times did it try to fetch the language list.
   int retry_count_;
 
+  // Max number how many times to retry on the server error
+  int max_retry_on_5xx_;
+
+  // An extra HTTP request header
+  std::string extra_request_header_;
+
   DISALLOW_COPY_AND_ASSIGN(TranslateURLFetcher);
 };
 
 #endif  // CHROME_BROWSER_TRANSLATE_TRANSLATE_URL_FETCHER_H_