net: remove AppendHeaderIfMissing() from HttpUtil

net/http/http_util_unittest.cc

 // Copyright (c) 2012 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 <algorithm>
 #include <limits>
 
 #include "base/strings/string_util.h"
 #include "net/http/http_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 82 matching lines @@
     "user_agent",
     "viaa",
   };
   for (size_t i = 0; i < arraysize(safe_headers); ++i) {
     EXPECT_TRUE(HttpUtil::IsSafeHeader(safe_headers[i])) << safe_headers[i];
     EXPECT_TRUE(HttpUtil::IsSafeHeader(base::ToUpperASCII(safe_headers[i])))
         << safe_headers[i];
   }
 }
 
-TEST(HttpUtilTest, HasHeader) {
-  static const struct {
-    const char* const headers;
-    const char* const name;
-    bool expected_result;
-  } tests[] = {
-    { "", "foo", false },
-    { "foo\r\nbar", "foo", false },
-    { "ffoo: 1", "foo", false },
-    { "foo: 1", "foo", true },
-    { "foo: 1\r\nbar: 2", "foo", true },
-    { "fOO: 1\r\nbar: 2", "foo", true },
-    { "g: 0\r\nfoo: 1\r\nbar: 2", "foo", true },
-  };
-  for (size_t i = 0; i < arraysize(tests); ++i) {
-    bool result = HttpUtil::HasHeader(tests[i].headers, tests[i].name);
-    EXPECT_EQ(tests[i].expected_result, result);
-  }
-}
-
 TEST(HttpUtilTest, HeadersIterator) {
   std::string headers = "foo: 1\t\r\nbar: hello world\r\nbaz: 3 \r\n";
 
   HttpUtil::HeadersIterator it(headers.begin(), headers.end(), "\r\n");
 
   ASSERT_TRUE(it.GetNext());
   EXPECT_EQ(std::string("foo"), it.name());
   EXPECT_EQ(std::string("1"), it.values());
 
   ASSERT_TRUE(it.GetNext());
@@ skipping 1203 matching lines @@
   EXPECT_FALSE(HttpUtil::IsLWS('a'));
   EXPECT_FALSE(HttpUtil::IsLWS('.'));
   EXPECT_FALSE(HttpUtil::IsLWS('\n'));
   EXPECT_FALSE(HttpUtil::IsLWS('\r'));
 
   EXPECT_TRUE(HttpUtil::IsLWS('\t'));
   EXPECT_TRUE(HttpUtil::IsLWS(' '));
 }
 
 }  // namespace net