Add support for ProxyResolverErrorObserver to ProxyResolverMojo.

net/proxy/mojo_proxy_resolver_factory_impl.cc

Index: net/proxy/mojo_proxy_resolver_factory_impl.cc
diff --git a/net/proxy/mojo_proxy_resolver_factory_impl.cc b/net/proxy/mojo_proxy_resolver_factory_impl.cc
index bdb29abf1015d984a4828d3996d2c1b2dd99fc7e..568d976212393a1e0146e80e6e23e2b3627132b8 100644
--- a/net/proxy/mojo_proxy_resolver_factory_impl.cc
+++ b/net/proxy/mojo_proxy_resolver_factory_impl.cc
@@ -6,6 +6,7 @@
 
 #include "net/dns/host_resolver_mojo.h"
 #include "net/proxy/mojo_proxy_resolver_impl.h"
+#include "net/proxy/proxy_resolver_error_observer_mojo.h"
 #include "net/proxy/proxy_resolver_v8.h"
 #include "net/proxy/proxy_resolver_v8_tracing.h"
 #include "third_party/mojo/src/mojo/public/cpp/bindings/error_handler.h"
@@ -15,9 +16,10 @@ namespace {
 
 scoped_ptr<ProxyResolver> CreateDefaultProxyResolver(
     HostResolver* host_resolver,
+    scoped_ptr<ProxyResolverErrorObserver> error_observer,
     const ProxyResolver::LoadStateChangedCallback& callback) {
-  return make_scoped_ptr(
-      new ProxyResolverV8Tracing(host_resolver, nullptr, nullptr, callback));
+  return make_scoped_ptr(new ProxyResolverV8Tracing(
+      host_resolver, error_observer.release(), nullptr, callback));
 }
 
 // A class to manage the lifetime of a MojoProxyResolverImpl and a
@@ -28,7 +30,8 @@ class MojoProxyResolverHolder : public mojo::ErrorHandler {
   MojoProxyResolverHolder(
       const MojoProxyResolverFactoryImpl::Factory& proxy_resolver_factory,
       mojo::InterfaceRequest<interfaces::ProxyResolver> request,
-      interfaces::HostResolverPtr host_resolver);
+      interfaces::HostResolverPtr host_resolver,
+      interfaces::ProxyResolverErrorObserverPtr error_observer);
 
  private:
   // mojo::ErrorHandler override.
@@ -47,12 +50,14 @@ class MojoProxyResolverHolder : public mojo::ErrorHandler {
 MojoProxyResolverHolder::MojoProxyResolverHolder(
     const MojoProxyResolverFactoryImpl::Factory& proxy_resolver_factory,
     mojo::InterfaceRequest<interfaces::ProxyResolver> request,
-    interfaces::HostResolverPtr host_resolver)
+    interfaces::HostResolverPtr host_resolver,
+    interfaces::ProxyResolverErrorObserverPtr error_observer)
     : host_resolver_(host_resolver.Pass(),
                      base::Bind(&MojoProxyResolverHolder::OnConnectionError,
                                 base::Unretained(this))),
       proxy_resolver_(proxy_resolver_factory.Run(
           &host_resolver_,
+          ProxyResolverErrorObserverMojo::Create(error_observer.Pass()),
           base::Bind(&MojoProxyResolverHolder::LoadStateChanged,
                      base::Unretained(this)))),
       binding_(&proxy_resolver_, request.Pass()) {
@@ -88,12 +93,13 @@ MojoProxyResolverFactoryImpl::~MojoProxyResolverFactoryImpl() = default;
 
 void MojoProxyResolverFactoryImpl::CreateResolver(
     mojo::InterfaceRequest<interfaces::ProxyResolver> request,
-    interfaces::HostResolverPtr host_resolver) {
+    interfaces::HostResolverPtr host_resolver,
+    interfaces::ProxyResolverErrorObserverPtr error_observer) {
   // The MojoProxyResolverHolder will delete itself when either |request| or
   // |host_resolver| encounters a connection error, that is, when either the
   // ProxyResolver client or the HostResolver implementation is deleted.
   new MojoProxyResolverHolder(proxy_resolver_impl_factory_, request.Pass(),
-                              host_resolver.Pass());
+                              host_resolver.Pass(), error_observer.Pass());
 }
 
 }  // namespace net