[net/dns] Removes locking from DnsConfigServiceWin and adds local computer name.

net/dns/dns_hosts.cc

Index: net/dns/dns_hosts.cc
diff --git a/net/dns/dns_hosts.cc b/net/dns/dns_hosts.cc
index bd469121762c9e4bbab76f4b1cc014e71ddf6c6c..bfd216cc5b15291f1c4cb783407ed50d5238d532 100644
--- a/net/dns/dns_hosts.cc
+++ b/net/dns/dns_hosts.cc
@@ -7,6 +7,7 @@
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/string_tokenizer.h"
+#include "base/string_util.h"
 
 namespace net {
 
@@ -34,7 +35,9 @@ void ParseHosts(const std::string& contents, DnsHosts* dns_hosts) {
         AddressFamily fam = (ip.size() == 4) ? ADDRESS_FAMILY_IPV4 :
                                                ADDRESS_FAMILY_IPV6;
         while (tokens.GetNext()) {
-          IPAddressNumber& mapped_ip = hosts[DnsHostsKey(tokens.token(), fam)];
+          DnsHostsKey key(tokens.token(), fam);
+          StringToLowerASCII(&(key.first));
+          IPAddressNumber& mapped_ip = hosts[key];
           if (mapped_ip.empty())
             mapped_ip = ip;
           // else ignore this entry (first hit counts)
@@ -52,6 +55,11 @@ DnsHostsReader::DnsHostsReader(const FilePath& path,
   DCHECK(!callback.is_null());
 }
 
+DnsHostsReader::DnsHostsReader(const FilePath& path)
+    : path_(path),
+      success_(false) {
+}
+
 // Reads the contents of the file at |path| into |str| if the total length is
 // less than |max_size|.
 static bool ReadFile(const FilePath& path, int64 max_size, std::string* str) {