Add a BrowserState* parameter to GetEarlyPageScript().

ios/web/public/web_client.mm

 // 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.
 
 #import "ios/web/public/web_client.h"
 
 #import <Foundation/Foundation.h>
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
@@ skipping 52 matching lines @@
 base::StringPiece WebClient::GetDataResource(
     int resource_id,
     ui::ScaleFactor scale_factor) const {
   return base::StringPiece();
 }
 
 base::RefCountedMemory* WebClient::GetDataResourceBytes(int resource_id) const {
   return nullptr;
 }
 
-NSString* WebClient::GetEarlyPageScript() const {
+NSString* WebClient::GetEarlyPageScript(BrowserState* browser_state) const {
   return @"";
 }
 
 void WebClient::AllowCertificateError(
     WebState* web_state,
     int cert_error,
     const net::SSLInfo& ssl_info,
     const GURL& request_url,
     bool overridable,
     const base::Callback<void(bool)>& callback) {
   callback.Run(false);
 }
 
 }  // namespace web