[ios] Added NavigationManager::LoadURLWithParams public API.

ios/web/navigation/navigation_manager_impl.mm

 // Copyright 2013 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 "ios/web/navigation/navigation_manager_impl.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 204 matching lines @@
 }
 
 void NavigationManagerImpl::DiscardNonCommittedItems() {
   [session_controller_ discardNonCommittedEntries];
 }
 
 void NavigationManagerImpl::LoadIfNecessary() {
   // Nothing to do; iOS loads lazily.
 }
 
+void NavigationManagerImpl::LoadURLWithParams(
+    const NavigationManager::WebLoadParams& params) {
+  delegate_->LoadURLWithParams(params);
+}
+
 void NavigationManagerImpl::AddTransientURLRewriter(
     BrowserURLRewriter::URLRewriter rewriter) {
   DCHECK(rewriter);
   if (!transient_url_rewriters_) {
     transient_url_rewriters_.reset(
         new std::vector<BrowserURLRewriter::URLRewriter>());
   }
   transient_url_rewriters_->push_back(rewriter);
 }
 
@@ skipping 75 matching lines @@
   transient_url_rewriters_.reset();
 }
 
 void NavigationManagerImpl::CopyState(
     NavigationManagerImpl* navigation_manager) {
   SetSessionController(
       [[navigation_manager->GetSessionController() copy] autorelease]);
 }
 
 }  // namespace web