Expose WKWebView creation in ios/web/public.

This exposes a WKWebView creation method in ios/web/public.
It can now be used from ios/chrome/browser.

This will be used by the Mirror on WKWebView implementation which has
to redirect queries through a WKWebView to attach and set cookies.

BUG=495597

Review URL: https://codereview.chromium.org/1196603002

Cr-Commit-Position: refs/heads/master@{#335898}
diff --git a/ios/chrome/browser/experimental_flags.mm b/ios/chrome/browser/experimental_flags.mm
index 531f1f6..79718eb 100644
--- a/ios/chrome/browser/experimental_flags.mm
+++ b/ios/chrome/browser/experimental_flags.mm
@@ -18,7 +18,7 @@
 #include "components/variations/variations_associated_data.h"
 #include "ios/chrome/browser/chrome_switches.h"
 #include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
-#include "ios/web/public/web_view_util.h"
+#include "ios/web/public/web_view_creation_util.h"
 
 namespace {
 NSString* const kEnableAlertOnBackgroundUpload =