headless: Make HeadlessBrowser::Options move-only

headless/test/headless_browser_test.cc

Index: headless/test/headless_browser_test.cc
diff --git a/headless/test/headless_browser_test.cc b/headless/test/headless_browser_test.cc
index d81279ceff6f84598830086e826c1de1ad5b7abe..380ccd7a28642277040a118c05977807c05e4b58 100644
--- a/headless/test/headless_browser_test.cc
+++ b/headless/test/headless_browser_test.cc
@@ -99,10 +99,9 @@ void HeadlessBrowserTest::RunTestOnMainThreadLoop() {
   }
 }
 
-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 {