Upstream Chrome on iOS source code [9/11].

ios/chrome/browser/ui/tab_switcher/tab_switcher_model_private.h

Index: ios/chrome/browser/ui/tab_switcher/tab_switcher_model_private.h
diff --git a/ios/chrome/browser/ui/tab_switcher/tab_switcher_model_private.h b/ios/chrome/browser/ui/tab_switcher/tab_switcher_model_private.h
new file mode 100644
index 0000000000000000000000000000000000000000..5b710613d5a609f119a187d6890708d8163b3205
--- /dev/null
+++ b/ios/chrome/browser/ui/tab_switcher/tab_switcher_model_private.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.
+
+#ifndef IOS_CHROME_BROWSER_UI_TAB_SWITCHER_TAB_SWITCHER_MODEL_PRIVATE_H_
+#define IOS_CHROME_BROWSER_UI_TAB_SWITCHER_TAB_SWITCHER_MODEL_PRIVATE_H_
+
+#import "ios/chrome/browser/ui/tab_switcher/tab_switcher_model.h"
+
+@interface TabSwitcherModel (TestingSupport)
+// Notifies |delegate| about changes from |oldSessions| to |newSessions|,
+// including the insertion/deletions of distant sessions, and the
+// insertions/deletions/updates of tabs in the distant sessions.
+// Does not notify the delegate when the ordering of the distant sessions
+// changes.
++ (void)notifyDelegate:(id<TabSwitcherModelDelegate>)delegate
+       aboutChangeFrom:(synced_sessions::SyncedSessions&)oldSessions
+                    to:(synced_sessions::SyncedSessions&)newSessions;
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_TAB_SWITCHER_TAB_SWITCHER_MODEL_PRIVATE_H_