Send fatal proxy errors to the network delegate.

chrome/browser/extensions/extension_proxy_apitest.cc

Index: chrome/browser/extensions/extension_proxy_apitest.cc
diff --git a/chrome/browser/extensions/extension_proxy_apitest.cc b/chrome/browser/extensions/extension_proxy_apitest.cc
index ad77ed46ddb71f80d0aa30bca31474b685d587af..970ca712fe7a5b2444f758b3f29607223b23b62e 100644
--- a/chrome/browser/extensions/extension_proxy_apitest.cc
+++ b/chrome/browser/extensions/extension_proxy_apitest.cc
@@ -284,8 +284,8 @@ IN_PROC_BROWSER_TEST_F(ProxySettingsApiTest,
                    pref_service);
 }
 
-// TODO(jochen): enable once network side has landed. Tests error events.
-IN_PROC_BROWSER_TEST_F(ProxySettingsApiTest, DISABLED_ProxyEvents) {
+// Tests error events.
+IN_PROC_BROWSER_TEST_F(ProxySettingsApiTest, ProxyEvents) {
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kEnableExperimentalExtensionApis);