headless: Make HeadlessBrowser::Options move-only

headless/test/headless_browser_test.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 "headless/test/headless_browser_test.h"
 
 #include "base/files/file_path.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 81 matching lines @@
   RunTestOnMainThread();
   TearDownOnMainThread();
 
   for (content::RenderProcessHost::iterator i(
            content::RenderProcessHost::AllHostsIterator());
        !i.IsAtEnd(); i.Advance()) {
     i.GetCurrentValue()->FastShutdownIfPossible();
   }
 }
 
-void HeadlessBrowserTest::SetBrowserOptions(
-    const HeadlessBrowser::Options& options) {
+void HeadlessBrowserTest::SetBrowserOptions(HeadlessBrowser::Options options) {
   HeadlessContentMainDelegate::GetInstance()->browser()->SetOptionsForTesting(
-      options);
+      std::move(options));
 }
 
 HeadlessBrowser* HeadlessBrowserTest::browser() const {
   return HeadlessContentMainDelegate::GetInstance()->browser();
 }
 
 bool HeadlessBrowserTest::WaitForLoad(HeadlessWebContents* web_contents) {
   WaitForLoadObserver observer(this, web_contents);
   RunAsynchronousTest();
   return observer.navigation_succeeded();
 }
 
 void HeadlessBrowserTest::RunAsynchronousTest() {
   base::MessageLoop::ScopedNestableTaskAllower nestable_allower(
       base::MessageLoop::current());
   EXPECT_FALSE(run_loop_);
   run_loop_ = base::WrapUnique(new base::RunLoop());
   run_loop_->Run();
   run_loop_ = nullptr;
 }
 
 void HeadlessBrowserTest::FinishAsynchronousTest() {
   run_loop_->Quit();
 }
 
 }  // namespace headless