Fetch, XHR: Use ", " as header list value separator.

third_party/WebKit/Source/modules/fetch/FetchHeaderListTest.cpp

 // Copyright 2017 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 "modules/fetch/FetchHeaderList.h"
 
 #include <utility>
 #include "platform/wtf/StdLibExtras.h"
 #include "platform/wtf/text/WTFString.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 69 matching lines @@
 TEST(FetchHeaderListTest, Combine) {
   FetchHeaderList* headerList = FetchHeaderList::Create();
   headerList->Append("ConTenT-TyPe", "text/plain");
   headerList->Append("content-type", "application/xml");
   headerList->Append("CONTENT-type", "foo");
   headerList->Append("X-Foo", "bar");
   String combinedValue;
   EXPECT_TRUE(headerList->Get("X-Foo", combinedValue));
   EXPECT_EQ("bar", combinedValue);
   EXPECT_TRUE(headerList->Get("content-TYPE", combinedValue));
-  EXPECT_EQ("text/plain,application/xml,foo", combinedValue);
+  EXPECT_EQ("text/plain, application/xml, foo", combinedValue);
 }
 
 // This is going to be removed: see crbug.com/645492.
 TEST(FetchHeaderListTest, GetAll) {
   FetchHeaderList* headerList = FetchHeaderList::Create();
   headerList->Append("ConTenT-TyPe", "text/plain");
   headerList->Append("content-type", "application/xml");
   headerList->Append("CONTENT-type", "foo");
   headerList->Append("X-Foo", "bar");
   Vector<String> combinedValues;
@@ skipping 38 matching lines @@
 
 TEST(FetchHeaderListTest, SortAndCombine) {
   FetchHeaderList* headerList = FetchHeaderList::Create();
   EXPECT_TRUE(headerList->SortAndCombine().IsEmpty());
   headerList->Append("content-type", "multipart/form-data");
   headerList->Append("ConTenT-TyPe", "application/xml");
   headerList->Append("Accept", "XYZ");
   headerList->Append("X-Foo", "bar");
   const std::pair<String, String> expectedHeaders[] = {
       std::make_pair("accept", "XYZ"),
-      std::make_pair("content-type", "multipart/form-data,application/xml"),
+      std::make_pair("content-type", "multipart/form-data, application/xml"),
       std::make_pair("x-foo", "bar")};
   const Vector<FetchHeaderList::Header> sortedAndCombined =
       headerList->SortAndCombine();
   EXPECT_EQ(WTF_ARRAY_LENGTH(expectedHeaders), sortedAndCombined.size());
   size_t i = 0;
   for (const auto& headerPair : headerList->SortAndCombine()) {
     EXPECT_EQ(expectedHeaders[i].first, headerPair.first);
     EXPECT_EQ(expectedHeaders[i].second, headerPair.second);
     ++i;
   }
 }
 
 }  // namespace
 }  // namespace blink