Set user agent type of transient item the same as pending item.

ios/web/public/test/web_test_with_web_state.mm

Index: ios/web/public/test/web_test_with_web_state.mm
diff --git a/ios/web/public/test/web_test_with_web_state.mm b/ios/web/public/test/web_test_with_web_state.mm
index 9ee621e25276d62409c556f40ac4e203b2dc5f8d..c9e5c832ecea4bbc9f7198da13023132eb47c98b 100644
--- a/ios/web/public/test/web_test_with_web_state.mm
+++ b/ios/web/public/test/web_test_with_web_state.mm
@@ -7,6 +7,7 @@
 #include "base/run_loop.h"
 #include "base/strings/sys_string_conversions.h"
 #import "base/test/ios/wait_util.h"
+#import "ios/web/navigation/navigation_manager_impl.h"
 #include "ios/web/public/web_state/url_verification_constants.h"
 #include "ios/web/public/web_state/web_state_observer.h"
 #import "ios/web/web_state/ui/crw_web_controller.h"
@@ -148,6 +149,15 @@ void NavigationItemCommitted(const LoadCommittedDetails&) override {
   return web_state_.get();
 }
 
+void WebTestWithWebState::AddPendingItem(const GURL& url,
+                                         ui::PageTransition transition) {
+  WebStateImpl* web_state = static_cast<web::WebStateImpl*>(web_state_.get());
+  web_state->GetNavigationManagerImpl().AddPendingItem(

[Eugene But (OOO till 7-30), 2017/04/04 18:22:31]

GetWebController(web_state())->GetNavigationManagerImpl().AddPendingItem(

[liaoyuke, 2017/04/04 21:15:40]

Done.

+      url, Referrer(), transition,
+      web::NavigationInitiationType::USER_INITIATED,
+      web::NavigationManager::UserAgentOverrideOption::INHERIT);
+}
+
 void WebTestWithWebState::WillProcessTask(const base::PendingTask&) {
   // Nothing to do.
 }