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

net/proxy/proxy_service_mojo_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/proxy_service_mojo.h"
 
 #include <algorithm>
 #include <memory>
 #include <string>
 #include <utility>
@@ skipping 95 matching lines @@
   ASSERT_TRUE(entries[i].GetIntegerValue("line_number", &line_number));
   EXPECT_EQ(3, line_number);
 }
 
 class LoggingMockHostResolver : public MockHostResolver {
  public:
   int Resolve(const RequestInfo& info,
               RequestPriority priority,
               AddressList* addresses,
               const CompletionCallback& callback,
-              RequestHandle* out_req,
+              std::unique_ptr<Request>* out_req,
               const BoundNetLog& net_log) override {
     net_log.AddEvent(NetLog::TYPE_HOST_RESOLVER_IMPL_JOB);
     return MockHostResolver::Resolve(info, priority, addresses, callback,
                                      out_req, net_log);
   }
 };
 
 }  // namespace
 
 class ProxyServiceMojoTest : public testing::Test,
@@ skipping 130 matching lines @@
   EXPECT_THAT(callback.WaitForResult(), IsOk());
   EXPECT_EQ("DIRECT", info.ToPacString());
   EXPECT_EQ(0u, mock_host_resolver_.num_resolve());
 
   TestNetLogEntry::List entries;
   net_log_.GetEntries(&entries);
   CheckCapturedNetLogEntries(entries);
 }
 
 }  // namespace net