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

ios/chrome/browser/ui/key_commands_provider.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_KEY_COMMANDS_PROVIDER_H_
+#define IOS_CHROME_BROWSER_UI_KEY_COMMANDS_PROVIDER_H_
+
+#import <UIKit/UIKit.h>
+
+@protocol KeyCommandsPlumbing<NSObject>
+
+#pragma mark Query information
+
+// Whether the current profile is off-the-record.
+- (BOOL)isOffTheRecord;
+
+// Returns the current number of tabs.
+- (NSUInteger)tabsCount;
+
+#pragma mark Call for action
+
+// Executes a Chrome command.  |sender| must implement the |-tag| method and
+// return the id of the command to execute.  See UIKit+ChromeExecuteCommand.h
+// for more details.
+- (void)chromeExecuteCommand:(id)sender;
+
+// Called to put the tab at index in focus.
+- (void)focusTabAtIndex:(NSUInteger)index;
+
+// Called to focus the next tab.
+- (void)focusNextTab;
+
+// Called to focus the previous tab.
+- (void)focusPreviousTab;
+
+// Called to reopen the last closed tab.
+- (void)reopenClosedTab;
+
+// Called to focus the omnibox.
+- (void)focusOmnibox;
+
+@end
+
+// Handles the keyboard commands registration and handling for the
+// BrowserViewController.
+@interface KeyCommandsProvider : NSObject
+
+- (NSArray*)keyCommandsForConsumer:(id<KeyCommandsPlumbing>)consumer
+                       editingText:(BOOL)editingText;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_KEY_COMMANDS_PROVIDER_H_