Remove unusued WebFrameClient::willRequestResource and WebCachedURLRequest

public/web/WebFrameClient.h

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 43 matching lines @@
 #include "public/platform/WebURLRequest.h"
 #include <v8.h>
 
 namespace blink {
 
 enum class WebTreeScopeType;
 class WebApplicationCacheHost;
 class WebApplicationCacheHostClient;
 class WebAppBannerClient;
 class WebBluetooth;
-class WebCachedURLRequest;
 class WebColorChooser;
 class WebColorChooserClient;
 class WebContentDecryptionModule;
 class WebCookieJar;
 class WebDataSource;
 class WebEncryptedMediaClient;
 class WebExternalPopupMenu;
 class WebExternalPopupMenuClient;
 class WebFormElement;
 class WebGeolocationClient;
@@ skipping 330 matching lines @@
     // the given frame. Additional context data is supplied.
     virtual void showContextMenu(const WebContextMenuData&) { }
 
     // Called when the data attached to the currently displayed context menu is
     // invalidated. The context menu may be closed if possible.
     virtual void clearContextMenu() { }
 
 
     // Low-level resource notifications ------------------------------------
 
-    // An element will request a resource.
-    virtual void willRequestResource(WebLocalFrame*, const WebCachedURLRequest&) { }
-
     // A request is about to be sent out, and the client may modify it.  Request
     // is writable, and changes to the URL, for example, will change the request
     // made.  If this request is the result of a redirect, then redirectResponse
     // will be non-null and contain the response that triggered the redirect.
     virtual void willSendRequest(
         WebLocalFrame*, unsigned identifier, WebURLRequest&,
         const WebURLResponse& redirectResponse) { }
 
     // Response headers have been received for the resource request given
     // by identifier.
@@ skipping 253 matching lines @@
     // WebUSB --------------------------------------------------------------
     virtual WebUSBClient* usbClient() { return nullptr; }
 
 protected:
     virtual ~WebFrameClient() { }
 };
 
 } // namespace blink
 
 #endif