Upstream Chrome on iOS source code [1/11].

ios/chrome/app/chrome_overlay_window_testing.h

Index: ios/chrome/app/chrome_overlay_window_testing.h
diff --git a/ios/chrome/app/chrome_overlay_window_testing.h b/ios/chrome/app/chrome_overlay_window_testing.h
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index 0000000000000000000000000000000000000000..662d1b2ab6110ce1af53db7e110c2cff435a6b1f
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+++ b/ios/chrome/app/chrome_overlay_window_testing.h
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+// 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_APP_CHROME_OVERLAY_WINDOW_TESTING_H_
+#define IOS_CHROME_APP_CHROME_OVERLAY_WINDOW_TESTING_H_
+
+#import "ios/chrome/app/chrome_overlay_window.h"
+
+@interface ChromeOverlayWindow (ForTesting)
+
+// Cleans up the size class recorder of main window for testing.
+- (void)unsetSizeClassRecorder;
+
+@end
+#endif  // IOS_CHROME_APP_CHROME_OVERLAY_WINDOW_TESTING_H_