[ios] Adds a CommandDispatcher to proxy method calls to UI handlers.

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

Index: ios/clean/chrome/browser/ui/commands/command_dispatcher.h
diff --git a/ios/clean/chrome/browser/ui/commands/command_dispatcher.h b/ios/clean/chrome/browser/ui/commands/command_dispatcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..c0dd4af057f31fb32fdd8de808e8226eb162be93
--- /dev/null
+++ b/ios/clean/chrome/browser/ui/commands/command_dispatcher.h
@@ -0,0 +1,17 @@
+// 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_COMMAND_DISPATCHER_H_
+#define IOS_CLEAN_CHROME_BROWSER_UI_COMMANDS_COMMAND_DISPATCHER_H_
+
+#import <Foundation/Foundation.h>
+
+@interface CommandDispatcher : NSObject

[sdefresne, 2017/03/07 19:12:35]

Can you document the class and public methods?

[rohitrao (ping after 24h), 2017/03/09 14:41:11]

Done.

+
+- (void)registerTarget:(id)target forSelector:(SEL)selector;
+- (void)stopDispatchingForTarget:(id)target;
+
+@end
+
+#endif  // IOS_CLEAN_CHROME_BROWSER_UI_COMMANDS_COMMAND_DISPATCHER_H_