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

ios/chrome/browser/ui/history/history_panel_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.
+
+#ifndef IOS_CHROME_BROWSER_UI_HISTORY_HISTORY_PANEL_VIEW_CONTROLLER_H_
+#define IOS_CHROME_BROWSER_UI_HISTORY_HISTORY_PANEL_VIEW_CONTROLLER_H_
+
+#import <UIKit/UIKit.h>
+
+namespace ios {
+class ChromeBrowserState;
+}
+
+@protocol UrlLoader;
+
+// View controller for displaying the history panel.
+@interface HistoryPanelViewController : UIViewController
+
+- (instancetype)initWithLoader:(id<UrlLoader>)loader
+                  browserState:(ios::ChromeBrowserState*)browserState
+    NS_DESIGNATED_INITIALIZER;
+- (instancetype)initWithNibName:(NSString*)nibNameOrNil
+                         bundle:(NSBundle*)nibBundleOrNil NS_UNAVAILABLE;
+- (instancetype)initWithCoder:(NSCoder*)aDecoder NS_UNAVAILABLE;
+
+// Returns view controller that presents the history panel.
++ (UIViewController*)controllerToPresentForBrowserState:
+                         (ios::ChromeBrowserState*)browserState
+                                                 loader:(id<UrlLoader>)loader;
+@end
+#endif  // IOS_CHROME_BROWSER_UI_HISTORY_HISTORY_PANEL_VIEW_CONTROLLER_H_