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

ios/web/navigation/navigation_manager_impl_unittest.mm

Index: ios/web/navigation/navigation_manager_impl_unittest.mm
diff --git a/ios/web/navigation/navigation_manager_impl_unittest.mm b/ios/web/navigation/navigation_manager_impl_unittest.mm
index e76db99192d2912aafecfb67b37ddda957f3c90b..b777003c5ee6800c2f48b796683fbddd31749cb1 100644
--- a/ios/web/navigation/navigation_manager_impl_unittest.mm
+++ b/ios/web/navigation/navigation_manager_impl_unittest.mm
@@ -681,44 +681,6 @@
   EXPECT_EQ(item2->GetUserAgentType(), item3->GetUserAgentType());
 }
 
-// Tests that adding transient item for a pending item with mobile user agent
-// type results in a transient item with mobile user agent type.
-TEST_F(NavigationManagerTest, AddTransientItemForMobilePendingItem) {
-  navigation_manager()->AddPendingItem(
-      GURL("http://www.url.com"), Referrer(), ui::PAGE_TRANSITION_TYPED,
-      web::NavigationInitiationType::USER_INITIATED,
-      web::NavigationManager::UserAgentOverrideOption::INHERIT);
-  ASSERT_TRUE(navigation_manager()->GetPendingItem());
-  navigation_manager()->GetPendingItem()->SetUserAgentType(
-      UserAgentType::MOBILE);
-
-  navigation_manager()->AddTransientItem(GURL("http://www.url.com"));
-  ASSERT_TRUE(navigation_manager()->GetTransientItem());
-  EXPECT_EQ(UserAgentType::MOBILE,
-            navigation_manager()->GetTransientItem()->GetUserAgentType());
-  EXPECT_EQ(UserAgentType::MOBILE,
-            navigation_manager()->GetPendingItem()->GetUserAgentType());
-}
-
-// Tests that adding transient item for a pending item with desktop user agent
-// type results in a transient item with desktop user agent type.
-TEST_F(NavigationManagerTest, AddTransientItemForDesktopPendingItem) {
-  navigation_manager()->AddPendingItem(
-      GURL("http://www.url.com"), Referrer(), ui::PAGE_TRANSITION_TYPED,
-      web::NavigationInitiationType::USER_INITIATED,
-      web::NavigationManager::UserAgentOverrideOption::INHERIT);
-  ASSERT_TRUE(navigation_manager()->GetPendingItem());
-  navigation_manager()->GetPendingItem()->SetUserAgentType(
-      UserAgentType::DESKTOP);
-
-  navigation_manager()->AddTransientItem(GURL("http://www.url.com"));
-  ASSERT_TRUE(navigation_manager()->GetTransientItem());
-  EXPECT_EQ(UserAgentType::DESKTOP,
-            navigation_manager()->GetTransientItem()->GetUserAgentType());
-  EXPECT_EQ(UserAgentType::DESKTOP,
-            navigation_manager()->GetPendingItem()->GetUserAgentType());
-}
-
 // Tests that calling |Reload| with web::ReloadType::NORMAL is no-op when there
 // are no transient, pending and committed items.
 TEST_F(NavigationManagerTest, ReloadEmptyWithNormalType) {