Convert //content from scoped_ptr to std::unique_ptr

content/test/content_browser_test_utils_internal.cc

Index: content/test/content_browser_test_utils_internal.cc
diff --git a/content/test/content_browser_test_utils_internal.cc b/content/test/content_browser_test_utils_internal.cc
index 7e619364361261eb4b4edeca7737053713f34f8a..f6fbd433d30b504b88ca56d4c805754d9157bb88 100644
--- a/content/test/content_browser_test_utils_internal.cc
+++ b/content/test/content_browser_test_utils_internal.cc
@@ -397,9 +397,10 @@ void TestNavigationManager::DidStartNavigation(NavigationHandle* handle) {
     return;
 
   handle_ = handle;
-  scoped_ptr<NavigationThrottle> throttle(new TestNavigationManagerThrottle(
-      handle_, base::Bind(&TestNavigationManager::OnWillStartRequest,
-                          weak_factory_.GetWeakPtr())));
+  std::unique_ptr<NavigationThrottle> throttle(
+      new TestNavigationManagerThrottle(
+          handle_, base::Bind(&TestNavigationManager::OnWillStartRequest,
+                              weak_factory_.GetWeakPtr())));
   handle_->RegisterThrottleForTesting(std::move(throttle));
 }