Force offline by default for warm benchmarks.

shell/application_manager/network_fetcher.h

Index: shell/application_manager/network_fetcher.h
diff --git a/shell/application_manager/network_fetcher.h b/shell/application_manager/network_fetcher.h
index 9f1d45556ee3b409ef29725d56c537fc1d8c2cf4..2ef483be2ca1cdd2c366e5bafe0462fe5a08ef2a 100644
--- a/shell/application_manager/network_fetcher.h
+++ b/shell/application_manager/network_fetcher.h
@@ -20,6 +20,7 @@ namespace shell {
 class NetworkFetcher : public Fetcher {
  public:
   NetworkFetcher(bool disable_cache,
+                 bool force_offline_by_default,
                  const GURL& url,
                  mojo::URLResponseDiskCache* url_response_disk_cache,
                  mojo::NetworkService* network_service,
@@ -66,6 +67,7 @@ class NetworkFetcher : public Fetcher {
                                       const GURL& url);
 
   const bool disable_cache_;
+  const bool force_offline_by_default_;
   const GURL url_;
   mojo::URLResponseDiskCache* url_response_disk_cache_;
   mojo::NetworkService* network_service_;