Upstream Chrome on iOS source code [5/11].

ios/chrome/browser/ui/no_tabs/no_tabs_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_BROWSER_UI_NO_TABS_NO_TABS_CONTROLLER_H_
+#define IOS_CHROME_BROWSER_UI_NO_TABS_NO_TABS_CONTROLLER_H_
+
+#import <UIKit/UIKit.h>
+
+@class NoTabsToolbarController;
+
+@interface NoTabsController : NSObject
+
+// Desginated initializer. Installs the No-Tabs UI in the given |view|.
+- (id)initWithView:(UIView*)view;
+
+// Sets whether or not the No-Tabs UI displays a mode toggle switch.  Passes
+// through to the underlying NoTabsToolbarController.
+- (void)setHasModeToggleSwitch:(BOOL)hasModeToggle;
+
+// Sets up and installs an animation that will animate between the given
+// buttons.  If |show| is YES, the animation is set up as a show animation;
+// otherwise, it is set up as a dismiss animation.
+- (void)installAnimationImageForButton:(UIButton*)fromButton
+                                inView:(UIView*)view
+                                  show:(BOOL)show;
+
+// TODO(blundell): This method should be internalized if the NoTabsController
+// becomes part of the responder chain and can catch the command to show the
+// tools menu directly via |chromeExecuteCommand|.
+// Shows the tools menu popup.
+- (void)showToolsMenuPopup;
+
+// Dismisses the tools popup if it is open.
+- (void)dismissToolsMenuPopup;
+
+// Must be called before starting the show animation in order to move views into
+// their pre-animation positions.
+- (void)prepareForShowAnimation;
+
+// Shows the No-Tabs UI.  Can be called from within an animation block to
+// animate the show.
+- (void)showNoTabsUI;
+
+// Must be called after the show animation finishes to allow this controller to
+// clean up any animation-related state.
+- (void)showAnimationDidFinish;
+
+// Must be called before starting the dismiss animation in order to move views
+// into their pre-animation positions.
+- (void)prepareForDismissAnimation;
+
+// Dismisses the No-Tabs UI.  Can be called from within an animation block to
+// animate the dismiss.
+- (void)dismissNoTabsUI;
+
+// Must be called after the dismiss animation finishes to allow this controller
+// to clean up any animation-related state.
+- (void)dismissAnimationDidFinish;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_NO_TABS_NO_TABS_CONTROLLER_H_