Revert of Move core web_view code to extensions.

extensions/browser/api/extensions_api_client.cc

 // Copyright 2014 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.
 
 #include "extensions/browser/api/extensions_api_client.h"
 
 #include "base/logging.h"
 
 namespace extensions {
 class AppViewGuestDelegate;
@@ skipping 33 matching lines @@
 AppViewGuestDelegate* ExtensionsAPIClient::CreateAppViewGuestDelegate() const {
   return NULL;
 }
 
 device::HidService* ExtensionsAPIClient::GetHidService() {
   // This should never be called by clients which don't support the HID API.
   NOTIMPLEMENTED();
   return NULL;
 }
 
-WebViewGuestDelegate* ExtensionsAPIClient::CreateWebViewGuestDelegate(
-    WebViewGuest* web_view_guest) const {
-  return NULL;
-}
-
-WebViewPermissionHelperDelegate* ExtensionsAPIClient::
-    CreateWebViewPermissionHelperDelegate(
-        WebViewPermissionHelper* web_view_permission_helper) const {
-  return NULL;
-}
-
 }  // namespace extensions