Remove socket performance watcher factory from URL request context builder

net/url_request/url_request_context_builder.h

Index: net/url_request/url_request_context_builder.h
diff --git a/net/url_request/url_request_context_builder.h b/net/url_request/url_request_context_builder.h
index a67f6aa8d6318128197bd31a11ad837cc4c87505..c37eb21e4f96c7ecfe288eaa9c3faf6d691fa907 100644
--- a/net/url_request/url_request_context_builder.h
+++ b/net/url_request/url_request_context_builder.h
@@ -53,7 +53,6 @@ class HttpAuthHandlerFactory;
 class HttpServerProperties;
 class NetworkQualityEstimator;
 class ProxyConfigService;
-class SocketPerformanceWatcherFactory;
 class URLRequestContext;
 class URLRequestInterceptor;
 
@@ -278,11 +277,6 @@ class NET_EXPORT URLRequestContextBuilder {
     throttling_enabled_ = throttling_enabled;
   }
 
-  void set_socket_performance_watcher_factory(
-      SocketPerformanceWatcherFactory* socket_performance_watcher_factory) {
-    socket_performance_watcher_factory_ = socket_performance_watcher_factory;
-  }
-
   void set_ct_verifier(std::unique_ptr<CTVerifier> ct_verifier);
 
   void SetCertVerifier(std::unique_ptr<CertVerifier> cert_verifier);
@@ -376,10 +370,6 @@ class NET_EXPORT URLRequestContextBuilder {
   std::unique_ptr<HttpServerProperties> http_server_properties_;
   std::map<std::string, std::unique_ptr<URLRequestJobFactory::ProtocolHandler>>
       protocol_handlers_;
-  // SocketPerformanceWatcherFactory to be used by this context builder.
-  // Not owned by the context builder. Once it is set to a non-null value, it
-  // is guaranteed to be non-null during the lifetime of |this|.
-  SocketPerformanceWatcherFactory* socket_performance_watcher_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestContextBuilder);
 };