Remove ListValue::Append(new {Fundamental,String}Value(...)) pattern in //net

net/http/http_response_headers.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.
 
 // The rules for header parsing were borrowed from Firefox:
 // http://lxr.mozilla.org/seamonkey/source/netwerk/protocol/http/src/nsHttpResponseHead.cpp
 // The rules for parsing content-types were also borrowed from Firefox:
 // http://lxr.mozilla.org/mozilla/source/netwerk/base/src/nsURLHelper.cpp#834
 
 #include "net/http/http_response_headers.h"
@@ skipping 1398 matching lines @@
       *instance_length < 0 || *instance_length - 1 < *last_byte_position)
     return false;
 
   return true;
 }
 
 std::unique_ptr<base::Value> HttpResponseHeaders::NetLogCallback(
     NetLogCaptureMode capture_mode) const {
   std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
   base::ListValue* headers = new base::ListValue();
-  headers->Append(new base::StringValue(EscapeNonASCII(GetStatusLine())));
+  headers->AppendString(EscapeNonASCII(GetStatusLine()));
   size_t iterator = 0;
   std::string name;
   std::string value;
   while (EnumerateHeaderLines(&iterator, &name, &value)) {
     std::string log_value =
         ElideHeaderValueForNetLog(capture_mode, name, value);
     std::string escaped_name = EscapeNonASCII(name);
     std::string escaped_value = EscapeNonASCII(log_value);
-    headers->Append(
-      new base::StringValue(
-          base::StringPrintf("%s: %s", escaped_name.c_str(),
-                             escaped_value.c_str())));
+    headers->AppendString(base::StringPrintf("%s: %s", escaped_name.c_str(),
+                                             escaped_value.c_str()));
   }
   dict->Set("headers", headers);
   return std::move(dict);
 }
 
 // static
 bool HttpResponseHeaders::FromNetLogParam(
     const base::Value* event_param,
     scoped_refptr<HttpResponseHeaders>* http_response_headers) {
   *http_response_headers = NULL;
@@ skipping 23 matching lines @@
   return true;
 }
 
 bool HttpResponseHeaders::IsChunkEncoded() const {
   // Ignore spurious chunked responses from HTTP/1.0 servers and proxies.
   return GetHttpVersion() >= HttpVersion(1, 1) &&
       HasHeaderValue("Transfer-Encoding", "chunked");
 }
 
 }  // namespace net