[ios] Removed CRWWebController from WebTestWithWebState interface.

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/weak_nsobject.h"
 #include "base/message_loop/message_loop.h"
 #include "ios/web/public/test/web_test.h"
 #include "url/gurl.h"
 
-@class CRWWebController;
-
 namespace web {
 
 class WebState;
 
 // Base test fixture that provides WebState for testing.
 class WebTestWithWebState : public WebTest,
                             public base::MessageLoop::TaskObserver {
  protected:
   WebTestWithWebState();
   ~WebTestWithWebState() override;
@@ skipping 38 matching lines @@
   // LoadURL() for data URLs sometimes lock up navigation, so if the loaded page
   // is not the one expected, reset the web view. In some cases, document or
   // document.body does not exist either; also reset in those cases.
   // Returns true if a reset occurred. One may want to load the page again.
   bool ResetPageIfNavigationStalled(NSString* load_check);
   // Creates a unique HTML element to look for in
   // ResetPageIfNavigationStalled().
   NSString* CreateLoadCheck();
   // The web state for testing.
   std::unique_ptr<WebState> web_state_;
-  // The web controller for testing.
-  // TODO(crbug.com/619076): Remove this ivar.
-  base::WeakNSObject<CRWWebController> webController_;
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_PUBLIC_TEST_WEB_TEST_WITH_WEB_STATE_H_