Simple strip container that can reveal/hide tab strip.

ios/chrome/browser/ui/actions/tab_strip_actions.h

Index: ios/chrome/browser/ui/actions/tab_strip_actions.h
diff --git a/ios/chrome/browser/ui/actions/tab_strip_actions.h b/ios/chrome/browser/ui/actions/tab_strip_actions.h
new file mode 100644
index 0000000000000000000000000000000000000000..a238c2362e84e296db4a85879aee4521aa321eca
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+++ b/ios/chrome/browser/ui/actions/tab_strip_actions.h
@@ -0,0 +1,21 @@
+// 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_ACTIONS_TAB_STRIP_ACTIONS_H_
+#define IOS_CHROME_BROWSER_UI_ACTIONS_TAB_STRIP_ACTIONS_H_
+
+#import <Foundation/Foundation.h>
+
+// Target/Action methods relating to the tab strip.
+@protocol TabStripActions
+@optional
+// Reveals or hides the tab strip.
+- (void)toggleTabStrip:(id)sender;
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_ACTIONS_TAB_STRIP_ACTIONS_H_