Update from chromium https://crrev.com/301725/

net/proxy/proxy_script_decider_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 <vector>
 
 #include "base/bind.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 292 matching lines @@
   EXPECT_TRUE(decider.effective_config().has_pac_url());
   EXPECT_EQ(rule.url, decider.effective_config().pac_url());
 }
 
 class ProxyScriptDeciderQuickCheckTest : public ::testing::Test {
  public:
   ProxyScriptDeciderQuickCheckTest()
       : rule_(rules_.AddSuccessRule("http://wpad/wpad.dat")),
         fetcher_(&rules_) { }
 
-  virtual void SetUp() override {
+  void SetUp() override {
     request_context_.set_host_resolver(&resolver_);
     fetcher_.SetRequestContext(&request_context_);
     config_.set_auto_detect(true);
     decider_.reset(new ProxyScriptDecider(&fetcher_, &dhcp_fetcher_, NULL));
   }
 
   int StartDecider() {
     return decider_->Start(config_, base::TimeDelta(), true,
                             callback_.callback());
   }
@@ skipping 444 matching lines @@
 
   // Run the message loop to let the DHCP fetch complete and post the results
   // back. Before the fix linked to above, this would try to invoke on
   // the callback object provided by ProxyScriptDecider after it was
   // no longer valid.
   base::MessageLoop::current()->RunUntilIdle();
 }
 
 }  // namespace
 }  // namespace net