Revert 76228 - Move core pieces of geolocation from chrome to content.This is...

content/browser/geolocation/gateway_data_provider_win.cc

-// Copyright (c) 2010 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 "content/browser/geolocation/gateway_data_provider_win.h"
-
-#include <iphlpapi.h>
-#include <winsock2.h>
-
-#include <set>
-
-#include "base/command_line.h"
-#include "base/utf_string_conversions.h"
-#include "chrome/common/chrome_switches.h"
-#include "content/browser/geolocation/empty_device_data_provider.h"
-
-namespace {
-
-string16 MacAsString16(const uint8 mac_as_int[6]) {
-  // mac_as_int is big-endian. Write in byte chunks.
-  // Format is XX-XX-XX-XX-XX-XX.
-  static const wchar_t* const kMacFormatString =
-      L"%02x-%02x-%02x-%02x-%02x-%02x";
-  return WideToUTF16(StringPrintf(kMacFormatString,
-                                  mac_as_int[0], mac_as_int[1],
-                                  mac_as_int[2], mac_as_int[3],
-                                  mac_as_int[4], mac_as_int[5]));
-}
-
-void FetchGatewayIps(std::set<IPAddr>* gateway_ips) {
-  ULONG out_buf_len = 0;
-  if (GetAdaptersInfo(NULL, &out_buf_len) != ERROR_BUFFER_OVERFLOW)
-    return;
-  scoped_ptr_malloc<IP_ADAPTER_INFO> adapter_list(
-      static_cast<IP_ADAPTER_INFO*>(malloc(out_buf_len)));
-  if (adapter_list == NULL)
-    return;
-  if (GetAdaptersInfo(adapter_list.get(), &out_buf_len) == NO_ERROR) {
-    for (const IP_ADAPTER_INFO* adapter = adapter_list.get(); adapter != NULL;
-         adapter = adapter->Next) {
-      if (adapter->Type == IF_TYPE_ETHERNET_CSMACD) {
-        // If we have multiple gateways with conflicting IPs we'll disregard
-        // the duplicates.
-        for (const IP_ADDR_STRING* gw = &adapter->GatewayList;
-             gw != NULL; gw = gw->Next)
-          gateway_ips->insert(inet_addr(gw->IpAddress.String));
-      }
-    }
-  }
-}
-
-// Sends an ARP request to determine the MAC address of the destination.
-bool GetMacFromIp(IPAddr dest_ip, ULONG* mac_addr, size_t mac_addr_size) {
-  memset(mac_addr, 0xff, mac_addr_size);
-  DWORD arp_result = 0;
-  ULONG phys_addr_len = 6;
-  IPAddr src_ip = 0;
-  arp_result = SendARP(dest_ip, src_ip, mac_addr, &phys_addr_len);
-  return arp_result == NO_ERROR && phys_addr_len == 6;
-}
-
-} // namespace
-
-class WinGatewayApi : public GatewayDataProviderCommon::GatewayApiInterface {
- public:
-  WinGatewayApi();
-  virtual ~WinGatewayApi();
-
-  // GatewayApiInterface
-  virtual bool GetRouterData(GatewayData::RouterDataSet* data);
-};
-
-GatewayDataProviderCommon::GatewayApiInterface*
-WinGatewayDataProvider::NewGatewayApi() {
-  return new WinGatewayApi();
-}
-
-WinGatewayApi::WinGatewayApi() {
-}
-
-WinGatewayApi::~WinGatewayApi() {
-}
-
-bool WinGatewayApi::GetRouterData(GatewayData::RouterDataSet* data) {
-  std::set<IPAddr> gateway_ips;
-  FetchGatewayIps(&gateway_ips);
-  if (gateway_ips.empty())
-    return false;
-  const size_t kMacAddrLength = 2;
-  for (std::set<IPAddr>::const_iterator gateway_it =
-       gateway_ips.begin(); gateway_it != gateway_ips.end(); ++gateway_it) {
-    IPAddr adapter_gateway_ip = *gateway_it;
-    ULONG mac_addr[kMacAddrLength];
-    if (GetMacFromIp(adapter_gateway_ip, mac_addr, sizeof(mac_addr))) {
-      RouterData router;
-      uint8* phys_addr = reinterpret_cast<uint8*>(&mac_addr);
-      router.mac_address = MacAsString16(phys_addr);
-      data->insert(router);
-    }
-  }
-  return true;
-}
-
-WinGatewayDataProvider::WinGatewayDataProvider() {
-}
-
-WinGatewayDataProvider::~WinGatewayDataProvider() {
-}
-
-template<>
-GatewayDataProviderImplBase* GatewayDataProvider::DefaultFactoryFunction() {
-  if (!CommandLine::ForCurrentProcess()
-      ->HasSwitch(switches::kExperimentalLocationFeatures))
-    return new EmptyDeviceDataProvider<GatewayData>();
-  return new WinGatewayDataProvider();
-}