Upstream Chrome on iOS source code [9/11].

ios/chrome/browser/ui/toolbar/toolbar_view_controller.h

+// Copyright 2016 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.
+
+// ======                        New Architecture                         =====
+// =         This code is only used in the new iOS Chrome architecture.       =
+// ============================================================================
+
+#ifndef IOS_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_VIEW_CONTROLLER_H_
+#define IOS_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_VIEW_CONTROLLER_H_
+
+#import <UIKit/UIKit.h>
+
+#import "ios/chrome/browser/ui/animators/zoom_transition_delegate.h"
+
+// Action delegate for coordinators that handle the toolbar UI.
+@protocol ToolbarActionDelegate<NSObject>
+
+// Shows the tools menu.
+- (void)showToolsMenu;
+
+// Closes the tools menu.
+- (void)closeToolsMenu;
+
+@end
+
+// View controller for a toolbar, which will show a horizontal row of
+// controls and/or labels.
+// This view controller will fill its container; it is up to the containing
+// view controller or presentation controller to configure an appropriate
+// height for it.
+@interface ToolbarViewController : UIViewController<ZoomTransitionDelegate>
+
+// The action delegate for this view controller.:wq
+@property(nonatomic, weak) id<ToolbarActionDelegate> actionDelegate;
+
+// Sets the text for a label appearing in the center of the toolbar.
+- (void)setCurrentPageText:(NSString*)text;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_VIEW_CONTROLLER_H_