Do not check for ASCII in WebSecurityOrigin->Origin conversion

third_party/WebKit/public/platform/WebSecurityOrigin.h

 /*
  * Copyright (C) 2010 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 105 matching lines @@
       WTF::PassRefPtr<SecurityOrigin>);
   BLINK_PLATFORM_EXPORT operator WTF::PassRefPtr<SecurityOrigin>() const;
   BLINK_PLATFORM_EXPORT SecurityOrigin* get() const;
 #else
   // TODO(mkwst): A number of properties don't survive a round-trip
   // ('document.domain', for instance).  We'll need to fix that for OOPI-enabled
   // embedders, https://crbug.com/490074.
   operator url::Origin() const {
     return isUnique() ? url::Origin()
                       : url::Origin::CreateFromNormalizedTupleWithSuborigin(
-                            protocol().utf8(), host().utf8(), effectivePort(),
-                            suborigin().utf8());
+                            protocol().ascii(), host().ascii(), effectivePort(),
+                            suborigin().ascii());
   }
 
   WebSecurityOrigin(const url::Origin& origin) : m_private(0) {
     if (origin.unique()) {
       assign(WebSecurityOrigin::createUnique());
       return;
     }
 
     // TODO(mkwst): This might open up issues by double-canonicalizing the host.
     assign(WebSecurityOrigin::createFromTupleWithSuborigin(
@@ skipping 12 matching lines @@
       int port,
       const WebString& suborigin);
 
   void assign(WebSecurityOriginPrivate*);
   WebSecurityOriginPrivate* m_private;
 };
 
 }  // namespace blink
 
 #endif