[ios] RootCoordinator and view controller.

ios/clean/chrome/app/steps/root_coordinator+application_step.mm

-// Copyright 2016 The Chromium Authors. All rights reserved.
+// 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/app/steps/tab_grid_coordinator+application_step.h"
+#import "ios/clean/chrome/app/steps/root_coordinator+application_step.h"
 
 #import "base/supports_user_data.h"
 #import "ios/clean/chrome/app/application_state.h"
 #import "ios/shared/chrome/browser/ui/browser_list/browser.h"
 #import "ios/shared/chrome/browser/ui/browser_list/browser_list.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
 
 namespace {
 // SupportsUserData storage container for a BrowserCoordinator object, which
 // keeps a strong reference to the object it is initialized with.
 class RootCoordinatorContainer : public base::SupportsUserData::Data {
  public:
   explicit RootCoordinatorContainer(BrowserCoordinator* coordinator)
       : coordinator_(coordinator) {}
 
  private:
   // Mark this variable unused to avoid a compiler warning; the compiler
   // doesn't have visibility into the ARC-injected retain/release.
   BrowserCoordinator* __attribute__((unused)) coordinator_;
 };
 
 const char kRootCoordinatorContainerKey[] = "root_coordinator";
 }  // namespace
 
-@interface StopTabGridCoordinator : NSObject<ApplicationStep>
+@interface StopRootCoordinator : NSObject<ApplicationStep>
 @end
 
-@implementation TabGridCoordinator (ApplicationStep)
+@implementation RootCoordinator (ApplicationStep)
 
 - (BOOL)canRunInState:(ApplicationState*)state {
   return [state.window isKeyWindow] && state.phase == APPLICATION_FOREGROUNDED;
 }
 
 - (void)runInState:(ApplicationState*)state {
   self.browser =
       BrowserList::FromBrowserState(state.browserState)->CreateNewBrowser();
   [self start];
 
   state.window.rootViewController = self.viewController;
 
   // Size the main view controller to fit the whole screen.
   [self.viewController.view setFrame:state.window.bounds];
 
   // Tell the application state to use this object to open URLs.
   state.URLOpener = self;
 
   // Show the window.
   state.window.hidden = NO;
 
   // Make sure this object stays alive.
   state.persistentState->SetUserData(kRootCoordinatorContainerKey,
                                      new RootCoordinatorContainer(self));
 
   // Add a termination step to remove this object.
-  [[state terminationSteps] addObject:[[StopTabGridCoordinator alloc] init]];
+  [[state terminationSteps] addObject:[[StopRootCoordinator alloc] init]];
 }
 
 @end
 
-@implementation StopTabGridCoordinator
+@implementation StopRootCoordinator
 
 - (BOOL)canRunInState:(ApplicationState*)state {
   return state.phase = APPLICATION_TERMINATING;
 }
 
 - (void)runInState:(ApplicationState*)state {
   state.persistentState->RemoveUserData(kRootCoordinatorContainerKey);
 }
 
 @end