[ios] Dispatcher for tab_strip and tab_grid.

ios/clean/chrome/browser/ui/commands/tab_strip_commands.h

Index: ios/clean/chrome/browser/ui/commands/tab_strip_commands.h
diff --git a/ios/clean/chrome/browser/ui/commands/tab_strip_commands.h b/ios/clean/chrome/browser/ui/commands/tab_strip_commands.h
new file mode 100644
index 0000000000000000000000000000000000000000..257bcc87cbe37b4a0411cff70e8ab361a7c572a2
--- /dev/null
+++ b/ios/clean/chrome/browser/ui/commands/tab_strip_commands.h
@@ -0,0 +1,20 @@
+// Copyright 2017 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_CLEAN_CHROME_BROWSER_UI_COMMANDS_TAB_STRIP_COMMANDS_H_
+#define IOS_CLEAN_CHROME_BROWSER_UI_COMMANDS_TAB_STRIP_COMMANDS_H_
+
+// Command protocol for commands relating to the tab strip UI.
+// (Commands are for communicating into or within the coordinator layer).

[marq (ping after 24h), 2017/03/30 08:46:18]

This boilerplate comment is becoming less accurate; specifically we might want
to mention that commands should be routed via the dispatcher.

[edchin, 2017/03/30 18:15:51]

Done. However, I did not mention the dispatcher
since this is simply an interface that can be used in any communications
architecture. Future proofing in the case we replace the underlying
architecture.

+@protocol TabStripCommands
+
+// Display the tab corresponding to |index|.
+- (void)showTabStripTabAtIndex:(int)index;
+
+// Remove tab corresponding to |index|.
+- (void)closeTabStripTabAtIndex:(int)index;
+
+@end
+
+#endif  // IOS_CLEAN_CHROME_BROWSER_UI_COMMANDS_TAB_STRIP_COMMANDS_H_