[ios] Removed deprecated JS execution API.

ios/web/interstitials/html_web_interstitial_impl.h

 // Copyright 2015 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_INTERSTITIALS_HTML_WEB_INTERSTITIAL_IMPL_H_
 #define IOS_WEB_INTERSTITIALS_HTML_WEB_INTERSTITIAL_IMPL_H_
 
 #import <WebKit/WebKit.h>
 
 #include <memory>
@@ skipping 21 matching lines @@
   // receives a JavaScript command.
   void CommandReceivedFromWebView(NSString* command);
 
   // WebInterstitialImpl implementation:
   CRWContentView* GetContentView() const override;
 
  protected:
   // WebInterstitialImpl implementation:
   void PrepareForDisplay() override;
   WebInterstitialDelegate* GetDelegate() const override;
-  void EvaluateJavaScript(NSString* script,
-                          JavaScriptCompletion completionHandler) override;
   void ExecuteJavaScript(NSString* script,
                          JavaScriptResultBlock completion_handler) override;
 
  private:
   // The HTML interstitial delegate.
   std::unique_ptr<HtmlWebInterstitialDelegate> delegate_;
   // The |web_view_|'s delegate.  Used to forward JavaScript commands
   // resulting from user interaction with the interstitial content.
   base::scoped_nsprotocol<id<WKNavigationDelegate>> web_view_delegate_;
   // The web view used to show the content. View needs to be resized by the
   // caller.
   base::scoped_nsobject<WKWebView> web_view_;
   // The CRWContentView used to display |web_view_controller_|'s view.
   base::scoped_nsobject<CRWContentView> content_view_;
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_INTERSTITIALS_HTML_WEB_INTERSTITIAL_IMPL_H_