Upstream Chrome on iOS source code [1/11].

ios/chrome/app/main_controller.h

+// 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.
+
+#ifndef IOS_CHROME_APP_MAIN_CONTROLLER_H_
+#define IOS_CHROME_APP_MAIN_CONTROLLER_H_
+
+#import <UIKit/UIKit.h>
+
+#import "ios/chrome/app/application_delegate/app_navigation.h"
+#import "ios/chrome/app/application_delegate/browser_launcher.h"
+#import "ios/chrome/app/application_delegate/startup_information.h"
+#import "ios/chrome/app/application_delegate/tab_opening.h"
+#import "ios/chrome/app/application_delegate/tab_switching.h"
+#import "ios/chrome/browser/ui/main/browser_view_information.h"
+
+@class AppState;
+@class MetricsMediator;
+
+// The main controller of the application, owned by the MainWindow nib. Also
+// serves as the delegate for the app. Owns all the various top-level
+// UI controllers.
+//
+// By design, it has no public API of its own. Anything interacting with
+// MainController should be doing so through a specific protocol.
+@interface MainController : NSObject<AppNavigation,
+                                     BrowserLauncher,
+                                     StartupInformation,
+                                     TabOpening,
+                                     TabSwitching>
+
+// A BrowserViewInformation object to perform BrowserViewController operations.
+@property(nonatomic, readonly) id<BrowserViewInformation>
+    browserViewInformation;
+
+// The application window.
+@property(nonatomic, retain) UIWindow* window;
+
+// Contains information about the application state, for example whether the
+// safe mode is activated.
+@property(nonatomic, assign) AppState* appState;
+
+// This metrics mediator is used to check and update the metrics accordingly to
+// to the user preferences.
+@property(nonatomic, assign) MetricsMediator* metricsMediator;
+
+// UIResponder addition to execute a Chrome command.  Overridden in UIWindow to
+// forward the call to the application delegate. The application delegate
+// forwards the call to this class.
+- (void)chromeExecuteCommand:(id)sender;
+
+// Returns whether the tab switcher is active.
+- (BOOL)isTabSwitcherActive;
+
+@end
+
+#endif  // IOS_CHROME_APP_MAIN_CONTROLLER_H_