Use persistent map of privet tokens for PrivetURLFetcher

chrome/browser/local_discovery/privet_url_fetcher.h

Index: chrome/browser/local_discovery/privet_url_fetcher.h
diff --git a/chrome/browser/local_discovery/privet_url_fetcher.h b/chrome/browser/local_discovery/privet_url_fetcher.h
index f3b7405378d0cc73385b7162db9ac81ef0ef5479..07930c5841f69220a3461335b3fcaa44c7e4bff1 100644
--- a/chrome/browser/local_discovery/privet_url_fetcher.h
+++ b/chrome/browser/local_discovery/privet_url_fetcher.h
@@ -54,13 +54,19 @@ class PrivetURLFetcher : public net::URLFetcherDelegate {
   };
 
   PrivetURLFetcher(
-      const std::string& token,
       const GURL& url,
       net::URLFetcher::RequestType request_type,
       net::URLRequestContextGetter* request_context,
       Delegate* delegate);
+
   virtual ~PrivetURLFetcher();
 
+  static void SetTokenForHost(
+      const std::string& host,
+      const std::string& token);
+
+  static void ResetTokenMapForTests();
+
   void DoNotRetryOnTransientError();
 
   void AllowEmptyPrivetToken();
@@ -79,13 +85,14 @@ class PrivetURLFetcher : public net::URLFetcherDelegate {
   int response_code() const { return url_fetcher_->GetResponseCode(); }
 
  private:
+  std::string GetHostString(); // Get string representing the host.
+  std::string GetPrivetAccessToken();
   void Try();
   void ScheduleRetry(int timeout_seconds);
   bool PrivetErrorTransient(const std::string& error);
   void RequestTokenRefresh();
   void RefreshToken(const std::string& token);
 
-  std::string privet_access_token_;
   GURL url_;
   net::URLFetcher::RequestType request_type_;
   scoped_refptr<net::URLRequestContextGetter> request_context_;
@@ -104,27 +111,6 @@ class PrivetURLFetcher : public net::URLFetcherDelegate {
   DISALLOW_COPY_AND_ASSIGN(PrivetURLFetcher);
 };
 
-class PrivetURLFetcherFactory {
- public:
-  explicit PrivetURLFetcherFactory(
-      net::URLRequestContextGetter* request_context);
-  ~PrivetURLFetcherFactory();
-
-  scoped_ptr<PrivetURLFetcher> CreateURLFetcher(
-      const GURL& url,
-      net::URLFetcher::RequestType request_type,
-      PrivetURLFetcher::Delegate* delegate) const;
-
-  void set_token(const std::string& token) { token_ = token; }
-  const std::string& get_token() const { return token_; }
-
- private:
-  scoped_refptr<net::URLRequestContextGetter> request_context_;
-  std::string token_;
-
-  DISALLOW_COPY_AND_ASSIGN(PrivetURLFetcherFactory);
-};
-
 }  // namespace local_discovery
 
 #endif  // CHROME_BROWSER_LOCAL_DISCOVERY_PRIVET_URL_FETCHER_H_