Log more data reduction proxy config service UMA

components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h b/components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h
index df01795fcaf93e5281e71137da129764b055ba88..e48c9184d1c7b5e6ede56236cf596837af4c831d 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h
@@ -190,6 +190,10 @@ class DataReductionProxyConfig
   // the URLRequestContext.
   bool ShouldEnableLoFiMode(const net::URLRequest& request);
 
+  // Returns true if the data saver has been enabled by the user, and the data
+  // saver proxy is reachable.
+  bool enabled_by_user_and_reachable() const;
+
  protected:
   // Virtualized for mocking. Records UMA containing the result of requesting
   // the secure proxy check.