[Fetch API] Pass web-platform fetch/api/cors/cors-preflight.html.

third_party/WebKit/Source/core/fetch/CrossOriginAccessControlTest.cpp

Index: third_party/WebKit/Source/core/fetch/CrossOriginAccessControlTest.cpp
diff --git a/third_party/WebKit/Source/core/fetch/CrossOriginAccessControlTest.cpp b/third_party/WebKit/Source/core/fetch/CrossOriginAccessControlTest.cpp
index bac83cc9b260776cf9fd420731fb1c153771bd63..744bd0f4332ba71861e82b554ab1e27f6577c0d1 100644
--- a/third_party/WebKit/Source/core/fetch/CrossOriginAccessControlTest.cpp
+++ b/third_party/WebKit/Source/core/fetch/CrossOriginAccessControlTest.cpp
@@ -34,7 +34,7 @@ TEST_F(CreateAccessControlPreflightRequestTest, LexicographicalOrder) {
   ResourceRequest preflight =
       createAccessControlPreflightRequest(request, m_securityOrigin.get());
 
-  EXPECT_EQ("apple, content-type, kiwifruit, orange, strawberry",
+  EXPECT_EQ("apple,content-type,kiwifruit,orange,strawberry",
             preflight.httpHeaderField("Access-Control-Request-Headers"));
 }