[ios clean] Add placeholder for NTP bookmarks, chrome home and open tabs.

ios/clean/chrome/browser/ui/ntp/new_tab_page_home_coordinator.mm

Index: ios/clean/chrome/browser/ui/ntp/new_tab_page_home_coordinator.mm
diff --git a/ios/clean/chrome/browser/ui/ntp/new_tab_page_home_coordinator.mm b/ios/clean/chrome/browser/ui/ntp/new_tab_page_home_coordinator.mm
new file mode 100644
index 0000000000000000000000000000000000000000..c5480f9dd1e1be487597eac020e3a3d2fc7ff857
--- /dev/null
+++ b/ios/clean/chrome/browser/ui/ntp/new_tab_page_home_coordinator.mm
@@ -0,0 +1,45 @@
+// Copyright 2017 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 "ios/clean/chrome/browser/ui/ntp/new_tab_page_home_coordinator.h"
+
+#import "ios/chrome/browser/ui/ntp/google_landing_controller.h"
+#import "ios/clean/chrome/browser/ui/ntp/new_tab_page_home_mediator.h"
+#import "ios/shared/chrome/browser/coordinator_context/coordinator_context.h"
+#import "ios/shared/chrome/browser/ui/browser_list/browser.h"
+#import "ios/shared/chrome/browser/ui/coordinators/browser_coordinator+internal.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+@interface NTPHomeCoordinator ()
+@property(nonatomic, strong) NTPHomeMediator* mediator;
+@property(nonatomic, strong) UIViewController* viewController;
+@property(nonatomic, strong) GoogleLandingController* wrapperViewController;

[lpromero, 2017/04/06 13:01:05]

This is not a view controller. Should the property be renamed?

[justincohen, 2017/04/06 18:25:10]

Done.

+@end
+
+@implementation NTPHomeCoordinator
+@synthesize mediator = _mediator;
+@synthesize viewController = _viewController;
+@synthesize webState = _webState;
+@synthesize wrapperViewController = _wrapperViewController;
+
+- (void)start {
+  // PLACEHOLDER: Re-using old view controllers for now.
+  DCHECK(self.webState);
+  self.mediator = [[NTPHomeMediator alloc] init];
+  self.mediator.webState = self.webState;
+  self.wrapperViewController = [[GoogleLandingController alloc]
+          initWithLoader:self.mediator
+            browserState:self.browser->browser_state()
+                 focuser:self.mediator
+      webToolbarDelegate:nil
+                tabModel:nil];
+  self.viewController = [[UIViewController alloc] init];
+  self.viewController.view = [self.wrapperViewController view];
+  [super start];
+}
+
+@end