Fix include import in ios/web

ios/web/public/test/web_test_with_web_state.h

 // 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_WEB_PUBLIC_TEST_WEB_TEST_WITH_WEB_STATE_H_
 #define IOS_WEB_PUBLIC_TEST_WEB_TEST_WITH_WEB_STATE_H_
 
-#include "base/ios/block_types.h"
+#import "base/ios/block_types.h"
 #include "base/message_loop/message_loop.h"
 #include "ios/web/public/test/web_test.h"
 #include "url/gurl.h"
 
 namespace web {
 
 class WebState;
 
 // Base test fixture that provides WebState for testing.
 class WebTestWithWebState : public WebTest,
@@ skipping 35 matching lines @@
 
   // The web state for testing.
   std::unique_ptr<WebState> web_state_;
   // true if a task has been processed.
   bool processed_a_task_;
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_PUBLIC_TEST_WEB_TEST_WITH_WEB_STATE_H_