Add a BrowserState* parameter to GetEarlyPageScript().

ios/web/web_state/ui/wk_web_view_configuration_provider_unittest.mm

 // 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.
 
 #import "ios/web/web_state/ui/wk_web_view_configuration_provider.h"
 
 #import <WebKit/WebKit.h>
 
 #import "base/ios/weak_nsobject.h"
 #include "base/memory/ptr_util.h"
@@ skipping 119 matching lines @@
   EXPECT_FALSE(config);
   EXPECT_FALSE(router);
 }
 
 // Tests that configuration's userContentController has only one script with the
 // same content as web::GetEarlyPageScript() returns.
 TEST_F(WKWebViewConfigurationProviderTest, UserScript) {
   WKWebViewConfiguration* config = GetProvider().GetWebViewConfiguration();
   NSArray* scripts = config.userContentController.userScripts;
   EXPECT_EQ(1U, scripts.count);
-  NSString* early_script = GetEarlyPageScript();
+  NSString* early_script = GetEarlyPageScript(&browser_state_);
   // |earlyScript| is a substring of |userScripts|. The latter wraps the
   // former with "if (!injected)" check to avoid double injections.
   EXPECT_LT(0U, [[scripts[0] source] rangeOfString:early_script].length);
 }
 
 }  // namespace
 }  // namespace web