Move AuthenticatingURLLoader app from ErrorHandler to callbacks

services/authenticating_url_loader_interceptor/authenticating_url_loader_interceptor.cc

Index: services/authenticating_url_loader_interceptor/authenticating_url_loader_interceptor.cc
diff --git a/services/authenticating_url_loader_interceptor/authenticating_url_loader_interceptor.cc b/services/authenticating_url_loader_interceptor/authenticating_url_loader_interceptor.cc
index 7219d5c478cc82c7ae6328b6b58819a6806ce63a..5fca2efd8f9c5f7e9c524b38527411bccba91754 100644
--- a/services/authenticating_url_loader_interceptor/authenticating_url_loader_interceptor.cc
+++ b/services/authenticating_url_loader_interceptor/authenticating_url_loader_interceptor.cc
@@ -17,12 +17,16 @@ AuthenticatingURLLoaderInterceptor::AuthenticatingURLLoaderInterceptor(
       factory_(factory),
       add_authentication_(true),
       request_authorization_state_(REQUEST_INITIAL) {
-  binding_.set_error_handler(this);
 }
 
 AuthenticatingURLLoaderInterceptor::~AuthenticatingURLLoaderInterceptor() {
 }
 
+void AuthenticatingURLLoaderInterceptor::set_connection_error_handler(
+    const Closure& error_handler) {
+  binding_.set_connection_error_handler(error_handler);
+}
+
 void AuthenticatingURLLoaderInterceptor::InterceptRequest(
     mojo::URLRequestPtr request,
     const InterceptRequestCallback& callback) {
@@ -156,11 +160,6 @@ void AuthenticatingURLLoaderInterceptor::InterceptResponse(
                  base::Unretained(this)));
 }
 
-void AuthenticatingURLLoaderInterceptor::OnConnectionError() {
-  factory_->OnInterceptorError(this);
-  // The factory deleted this object.
-}
-
 URLRequestPtr AuthenticatingURLLoaderInterceptor::BuildRequest(
     std::string token) {
   // We should only be sending out a request with a token if the initial