Change HostResolver::Resolve() to take an std::unique_ptr<Request>* rather than a RequestHandle*

net/spdy/spdy_session_unittest.cc

 // Copyright (c) 2012 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/spdy/spdy_session.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/base64.h"
@@ skipping 2945 matching lines @@
                       PRIVACY_MODE_DISABLED);
   base::WeakPtr<SpdySession> session1 = ::net::CreateInsecureSpdySession(
       http_session_.get(), key1, BoundNetLog());
   EXPECT_FALSE(pool->IsStalled());
 
   // Set up an alias for the idle SPDY session, increasing its ref count to 2.
   SpdySessionKey key2(HostPortPair("2.com", 80), ProxyServer::Direct(),
                       PRIVACY_MODE_DISABLED);
   HostResolver::RequestInfo info(key2.host_port_pair());
   AddressList addresses;
+  std::unique_ptr<HostResolver::Request> request;
   // Pre-populate the DNS cache, since a synchronous resolution is required in
   // order to create the alias.
   session_deps_.host_resolver->Resolve(info, DEFAULT_PRIORITY, &addresses,
-                                       CompletionCallback(), nullptr,
+                                       CompletionCallback(), &request,
                                        BoundNetLog());
   // Get a session for |key2|, which should return the session created earlier.
   base::WeakPtr<SpdySession> session2 =
       spdy_session_pool_->FindAvailableSession(key2, GURL(), BoundNetLog());
   ASSERT_EQ(session1.get(), session2.get());
   EXPECT_FALSE(pool->IsStalled());
 
   // Trying to create a new connection should cause the pool to be stalled, and
   // post a task asynchronously to try and close the session.
   TestCompletionCallback callback3;
@@ skipping 2418 matching lines @@
   ssl_info.cert = ImportCertFromFile(GetTestCertsDirectory(),
                                      "spdy_pooling.pem");
   ssl_info.is_issued_by_known_root = true;
   ssl_info.public_key_hashes.push_back(test::GetTestHashValue(primary_pin));
 
   EXPECT_TRUE(SpdySession::CanPool(
       &tss, ssl_info, "www.example.org", "mail.example.org"));
 }
 
 }  // namespace net