[ios] Adds a CommandDispatcher to Browser.

ios/shared/chrome/browser/ui/commands/command_dispatcher_unittest.mm

 // 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.
 
-#import "ios/clean/chrome/browser/ui/commands/command_dispatcher.h"
+#import "ios/shared/chrome/browser/ui/commands/command_dispatcher.h"
 
 #import <Foundation/Foundation.h>
 
 #include "base/macros.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
@@ skipping 211 matching lines @@
   bool exception_caught = false;
   @try {
     [dispatcher hide];
   } @catch (NSException* exception) {
     EXPECT_EQ(NSInvalidArgumentException, [exception name]);
     exception_caught = true;
   }
 
   EXPECT_TRUE(exception_caught);
 }