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

ios/chrome/browser/ui/history/history_search_view.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_SEARCH_VIEW_H_
+#define IOS_CHROME_BROWSER_UI_HISTORY_HISTORY_SEARCH_VIEW_H_
+
+#import <UIKit/UIKit.h>
+
+// View for displaying a search bar in history.
+@interface HistorySearchView : UIView
+
+// YES if the search view is in an enabled state. When not enabled, the search
+// view text is greyed out, the clear button is removed, and the cancel button
+// is disabled.
+@property(nonatomic, getter=isEnabled) BOOL enabled;
+
+// Sets the target/action of the cancel button.
+- (void)setCancelTarget:(id)target action:(SEL)action;
+
+// Sets the delegate of the search bar.
+- (void)setSearchBarDelegate:(id<UITextFieldDelegate>)delegate;
+
+// Clears the search bar text.
+- (void)clearText;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_HISTORY_HISTORY_SEARCH_VIEW_H_