Fix Link header parsing bug with extension parameter parsing.

Source/core/loader/LinkHeaderTest.cpp

 // 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.
 
 #include "config.h"
 #include "core/loader/LinkHeader.h"
 
 #include <base/macros.h>
 #include <gtest/gtest.h>
 
@@ skipping 91 matching lines @@
     struct DoubleTestCase {
         const char* headerValue;
         const char* url;
         const char* rel;
         bool valid;
         const char* url2;
         const char* rel2;
         bool valid2;
     } cases[] = {
         {"<ybg.css>; rel=stylesheet, <simple.css>; rel=stylesheet", "ybg.css", "stylesheet", true, "simple.css", "stylesheet", true},
+        {"<ybg.css>; rel=stylesheet,<simple.css>; rel=stylesheet", "ybg.css", "stylesheet", true, "simple.css", "stylesheet", true},
+        {"<ybg.css>; rel=stylesheet;crossorigin,<simple.css>; rel=stylesheet", "ybg.css", "stylesheet", true, "simple.css", "stylesheet", true},
     };
 
     for (auto& testCase : cases) {
         LinkHeaderSet headerSet(testCase.headerValue);
         LinkHeader& header1 = headerSet[0];
         LinkHeader& header2 = headerSet[1];
         ASSERT_STREQ(testCase.url, header1.url().ascii().data());
         ASSERT_STREQ(testCase.rel, header1.rel().ascii().data());
         ASSERT_EQ(testCase.valid, header1.valid());
         ASSERT_STREQ(testCase.url2, header2.url().ascii().data());
         ASSERT_STREQ(testCase.rel2, header2.rel().ascii().data());
         ASSERT_EQ(testCase.valid2, header2.valid());
     }
 }
 
 TEST(LinkHeaderTest, CrossOrigin)
 {
     struct TestCase {
         const char* headerValue;
         const char* url;
         const char* rel;
         const CrossOriginAttributeValue crossorigin;
         bool valid;
     } cases[] = {
         {"<http://whatever.com>; rel=preconnect", "http://whatever.com", "preconnect", CrossOriginAttributeNotSet, true},
         {"<http://whatever.com>; rel=preconnect; crossorigin=", "http://whatever.com", "preconnect", CrossOriginAttributeAnonymous, true},
         {"<http://whatever.com>; rel=preconnect; crossorigin", "http://whatever.com", "preconnect", CrossOriginAttributeAnonymous, true},
+        {"<http://whatever.com>; rel=preconnect; crossorigin;", "http://whatever.com", "preconnect", CrossOriginAttributeAnonymous, true},
+        {"<http://whatever.com>; rel=preconnect; crossorigin, <http://whatever2.com>; rel=preconnect", "http://whatever.com", "preconnect", CrossOriginAttributeAnonymous, true},
+        {"<http://whatever.com>; rel=preconnect; crossorigin,<http://whatever2.com>; rel=preconnect", "http://whatever.com", "preconnect", CrossOriginAttributeAnonymous, true},
         {"<http://whatever.com>; rel=preconnect; crossorigin=anonymous", "http://whatever.com", "preconnect", CrossOriginAttributeAnonymous, true},
         {"<http://whatever.com>; rel=preconnect; crossorigin=use-credentials", "http://whatever.com", "preconnect", CrossOriginAttributeUseCredentials, true},
         {"<http://whatever.com>; rel=preconnect; crossorigin=whatever", "http://whatever.com", "preconnect", CrossOriginAttributeAnonymous,  true},
     };
 
 
     // Test the cases with a single header
     for (auto& testCase : cases) {
         LinkHeaderSet headerSet(testCase.headerValue);
         LinkHeader& header = headerSet[0];
         ASSERT_STREQ(testCase.url, header.url().ascii().data());
         ASSERT_STREQ(testCase.rel, header.rel().ascii().data());
         ASSERT_EQ(testCase.crossorigin, header.crossOrigin());
         ASSERT_EQ(testCase.valid, header.valid());
     }
 }
 } // namespace blink