Upstream Chrome on iOS source code [3/11].

ios/chrome/browser/ui/bookmarks/bars/bookmark_navigation_bar.h

+// Copyright 2014 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_BOOKMARKS_BARS_BOOKMARK_NAVIGATION_BAR_H_
+#define IOS_CHROME_BROWSER_UI_BOOKMARKS_BARS_BOOKMARK_NAVIGATION_BAR_H_
+
+#import <UIKit/UIKit.h>
+
+// The navigation bar on the bookmark home page.
+@interface BookmarkNavigationBar : UIView
+
+// The height that this view's content view will be instantiated at. This is
+// independent of the status bar.
++ (CGFloat)expectedContentViewHeight;
+
+// Designated initializer.
+- (id)initWithFrame:(CGRect)outerFrame;
+
+// Set the target/action of the cancel button.
+- (void)setCancelTarget:(id)target action:(SEL)action;
+// Set the target/action of the edit button.
+- (void)setEditTarget:(id)target action:(SEL)action;
+// Set the target/action of the menu button.
+- (void)setMenuTarget:(id)target action:(SEL)action;
+// Set the target/action of the back button.
+- (void)setBackTarget:(id)target action:(SEL)action;
+- (void)setTitle:(NSString*)title;
+
+// Shows or hides the edit button.
+- (void)showEditButtonWithAnimationDuration:(CGFloat)duration;
+- (void)hideEditButtonWithAnimationDuration:(CGFloat)duration;
+// |visibility| of 1 is fully visible, and 0 is fully hidden.
+- (void)updateEditButtonVisibility:(CGFloat)visibility;
+
+// The menu and back button are at the same place. Only one should show at the
+// same time. By default, the menu button is showing.
+- (void)showMenuButtonInsteadOfBackButton:(CGFloat)duration;
+- (void)showBackButtonInsteadOfMenuButton:(CGFloat)duration;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_BOOKMARKS_BARS_BOOKMARK_NAVIGATION_BAR_H_