Change return type of Tab -navigationManager.

ios/chrome/browser/tabs/tab_model_unittest.mm

 // Copyright 2012 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.
 
 #import <objc/runtime.h>
 
 #include "base/files/file_path.h"
 #include "base/mac/scoped_nsautorelease_pool.h"
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
@@ skipping 560 matching lines @@
                            atIndex:TabModelConstants::kTabPositionAutomatically
                       inBackground:YES];
   EXPECT_EQ([tab_model_ indexOfTab:tab4], [tab_model_ indexOfTab:tab3] + 1);
 }
 
 TEST_F(TabModelTest, AddWithOrderControllerAndGrouping) {
   // Create a few tabs with the controller at the front.
   Tab* parent = [tab_model_ addTabWithURL:kURL referrer:kEmptyReferrer];
   // Force the history to update, as it is used to determine grouping.
   ASSERT_TRUE([parent navigationManager]);
-  [[parent navigationManager]->GetSessionController() commitPendingItem];
+  [[parent navigationManagerImpl]->GetSessionController() commitPendingItem];
   [tab_model_ addTabWithURL:kURL referrer:kEmptyReferrer];
   [tab_model_ addTabWithURL:kURL referrer:kEmptyReferrer];
 
   ASSERT_TRUE(chrome_browser_state_->CreateHistoryService(true));
 
   // Add a new tab, it should be added behind the parent.
   Tab* child1 =
       [tab_model_ insertTabWithURL:kURL
                           referrer:kEmptyReferrer
                         transition:ui::PAGE_TRANSITION_LINK
@@ skipping 15 matching lines @@
                            atIndex:TabModelConstants::kTabPositionAutomatically
                       inBackground:YES];
   EXPECT_EQ([tab_model_ indexOfTab:child2], 2U);
 
   // Navigate the parent tab to a new URL.  It should not change any ordering.
   web::NavigationManager::WebLoadParams parent_params(
       GURL("http://www.espn.com"));
   parent_params.transition_type = ui::PAGE_TRANSITION_TYPED;
   [[parent webController] loadWithParams:parent_params];
   ASSERT_TRUE([parent navigationManager]);
-  [[parent navigationManager]->GetSessionController() commitPendingItem];
+  [[parent navigationManagerImpl]->GetSessionController() commitPendingItem];
   EXPECT_EQ([tab_model_ indexOfTab:parent], 0U);
 
   // Add a new tab. It should be added behind the parent. It should not be added
   // after the previous two children.
   Tab* child3 =
       [tab_model_ insertTabWithURL:kURL
                           referrer:kEmptyReferrer
                         transition:ui::PAGE_TRANSITION_LINK
                             opener:parent
                        openedByDOM:NO
@@ skipping 20 matching lines @@
   // Now add a non-owned tab and make sure it is added at the end.
   Tab* nonChild = [tab_model_ addTabWithURL:kURL referrer:kEmptyReferrer];
   EXPECT_EQ([tab_model_ indexOfTab:nonChild], [tab_model_ count] - 1);
 }
 
 TEST_F(TabModelTest, AddWithLinkTransitionAndIndex) {
   // Create a few tabs with the controller at the front.
   Tab* parent = [tab_model_ addTabWithURL:kURL referrer:kEmptyReferrer];
   // Force the history to update, as it is used to determine grouping.
   ASSERT_TRUE([parent navigationManager]);
-  [[parent navigationManager]->GetSessionController() commitPendingItem];
+  [[parent navigationManagerImpl]->GetSessionController() commitPendingItem];
   [tab_model_ addTabWithURL:kURL referrer:kEmptyReferrer];
   [tab_model_ addTabWithURL:kURL referrer:kEmptyReferrer];
 
   ASSERT_TRUE(chrome_browser_state_->CreateHistoryService(true));
 
   // Add a new tab, it should be added before the parent since the index
   // parameter has been specified with a valid value.
   Tab* child1 = [tab_model_ insertTabWithURL:kURL
                                     referrer:kEmptyReferrer
                                   transition:ui::PAGE_TRANSITION_LINK
@@ skipping 176 matching lines @@
   // Restoring TabModel session sends asynchronous tasks to IO thread, wait
   // for them to complete after destroying the TabModel.
   base::RunLoop().RunUntilIdle();
 
   // Clean up.
   EXPECT_TRUE([[NSFileManager defaultManager] removeItemAtPath:stashPath
                                                          error:nullptr]);
 }
 
 }  // anonymous namespace