Don't call lower() on KURL protocol/host

content/child/blink_platform_impl_unittest.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 "content/child/blink_platform_impl.h"
 
 #include <stdint.h>
 
 #include "base/run_loop.h"
 #include "base/time/time.h"
@@ skipping 137 matching lines @@
 TEST(BlinkPlatformTest, WebSecurityOriginNormalization) {
   struct TestCases {
     const char* url;
   } cases[] = {{""},
                {"javascript:alert(1)"},
                {"file://example.com:443/etc/passwd"},
                {"blob:https://example.com/uuid-goes-here"},
                {"filesystem:https://example.com/temporary/yay.png"},
                {"data"},
                {"blob:"},
+               {"chrome://,/"},
                {"xkcd://927"},
                {"filesystem"},
                {"data://example.com:80"},
                {"http://☃.net:80"},
                {"http\nmore://example.com:80"},
                {"http\rmore://:example.com:80"},
                {"http\n://example.com:80"},
                {"http\r://example.com:80"},
                {"http://example.com\nnot-example.com:80"},
                {"http://example.com\rnot-example.com:80"},
                {"http://example.com\n:80"},
                {"http://example.com\r:80"},
                {"http://example.com:0"},
                {"http://EXAMPLE.com"},
                {"http://EXAMPLE.com/%3Afoo"},
                {"https://example.com:443"},
                {"file:///"},
                {"file:///root:80"}};
 
   for (const auto& test : cases) {
     SCOPED_TRACE(testing::Message() << test.url);
     blink::WebSecurityOrigin web_origin =
         blink::WebSecurityOrigin::createFromString(
             blink::WebString::fromUTF8(test.url));
     CheckCastedOriginsAlreadyNormalized(web_origin);
   }
 }
 
 }  // namespace content