Add LoadState reporting to the mojo proxy resolver.

net/proxy/mojo_proxy_resolver_factory_impl_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/proxy/mojo_proxy_resolver_factory_impl.h"
 
 #include "net/proxy/mock_proxy_resolver.h"
 #include "net/test/event_waiter.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
@@ skipping 28 matching lines @@
   void SetUp() override {
     new MojoProxyResolverFactoryImpl(
         base::Bind(&MojoProxyResolverFactoryImplTest::CreateFakeProxyResolver,
                    base::Unretained(this)),
         mojo::GetProxy(&factory_));
   }
 
   void OnConnectionError() override { waiter_.NotifyEvent(CONNECTION_ERROR); }
 
   scoped_ptr<ProxyResolver> CreateFakeProxyResolver(
-      HostResolver* host_resolver) {
+      HostResolver* host_resolver,
+      const ProxyResolver::LoadStateChangedCallback& callback) {
     EXPECT_TRUE(host_resolver);
     instances_created_++;
     waiter_.NotifyEvent(RESOLVER_CREATED);
     return make_scoped_ptr(new FakeProxyResolver(base::Bind(
         &MojoProxyResolverFactoryImplTest::OnFakeProxyInstanceDestroyed,
         base::Unretained(this))));
   }
 
   void OnFakeProxyInstanceDestroyed() {
     instances_destroyed_++;
@@ skipping 54 matching lines @@
   EXPECT_EQ(1, instances_created_);
   EXPECT_EQ(0, instances_destroyed_);
   proxy_resolver.reset();
   host_resolver_request = mojo::InterfaceRequest<interfaces::HostResolver>();
   waiter_.WaitForEvent(RESOLVER_DESTROYED);
   EXPECT_EQ(1, instances_created_);
   EXPECT_EQ(1, instances_destroyed_);
 }
 
 }  // namespace net