convert //headless to std::unique_ptr

headless/lib/headless_browser_browsertest.cc

 // Copyright 2016 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 <memory>
+
 #include "content/public/test/browser_test.h"
 #include "headless/public/headless_browser.h"
 #include "headless/public/headless_web_contents.h"
 #include "headless/test/headless_browser_test.h"
 #include "net/test/spawned_test_server/spawned_test_server.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace headless {
 
 IN_PROC_BROWSER_TEST_F(HeadlessBrowserTest, CreateAndDestroyWebContents) {
-  scoped_ptr<HeadlessWebContents> web_contents =
+  std::unique_ptr<HeadlessWebContents> web_contents =
       browser()->CreateWebContents(gfx::Size(800, 600));
   EXPECT_TRUE(web_contents);
   // TODO(skyostil): Verify viewport dimensions once we can.
   web_contents.reset();
 }
 
 class HeadlessBrowserTestWithProxy : public HeadlessBrowserTest {
  public:
   HeadlessBrowserTestWithProxy()
       : proxy_server_(net::SpawnedTestServer::TYPE_HTTP,
@@ skipping 15 matching lines @@
 
  private:
   net::SpawnedTestServer proxy_server_;
 };
 
 IN_PROC_BROWSER_TEST_F(HeadlessBrowserTestWithProxy, SetProxyServer) {
   HeadlessBrowser::Options::Builder builder;
   builder.SetProxyServer(proxy_server()->host_port_pair());
   SetBrowserOptions(builder.Build());
 
-  scoped_ptr<HeadlessWebContents> web_contents =
+  std::unique_ptr<HeadlessWebContents> web_contents =
       browser()->CreateWebContents(gfx::Size(800, 600));
 
   // Load a page which doesn't actually exist, but for which the our proxy
   // returns valid content anyway.
   EXPECT_TRUE(NavigateAndWaitForLoad(
       web_contents.get(), GURL("http://not-an-actual-domain.tld/hello.html")));
 }
 
 }  // namespace headless