Reland 2:Geolocation: move from content/browser to device/

content/browser/geolocation/wifi_data_provider_common.cc

Index: content/browser/geolocation/wifi_data_provider_common.cc
diff --git a/content/browser/geolocation/wifi_data_provider_common.cc b/content/browser/geolocation/wifi_data_provider_common.cc
deleted file mode 100644
index 572455a6c4f3c1b1bf7797ecd1c645f4d7004f4e..0000000000000000000000000000000000000000
--- a/content/browser/geolocation/wifi_data_provider_common.cc
+++ /dev/null
@@ -1,91 +0,0 @@
-// 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 "content/browser/geolocation/wifi_data_provider_common.h"
-
-#include "base/bind.h"
-#include "base/location.h"
-#include "base/single_thread_task_runner.h"
-#include "base/strings/stringprintf.h"
-#include "base/strings/utf_string_conversions.h"
-
-namespace content {
-
-base::string16 MacAddressAsString16(const uint8_t mac_as_int[6]) {
-  // mac_as_int is big-endian. Write in byte chunks.
-  // Format is XX-XX-XX-XX-XX-XX.
-  static const char* const kMacFormatString =
-      "%02x-%02x-%02x-%02x-%02x-%02x";
-  return base::ASCIIToUTF16(base::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]));
-}
-
-WifiDataProviderCommon::WifiDataProviderCommon()
-    : is_first_scan_complete_(false),
-      weak_factory_(this) {
-}
-
-WifiDataProviderCommon::~WifiDataProviderCommon() {
-}
-
-void WifiDataProviderCommon::StartDataProvider() {
-  DCHECK(wlan_api_ == NULL);
-  wlan_api_.reset(NewWlanApi());
-  if (wlan_api_ == NULL) {
-    // Error! Can't do scans, so don't try and schedule one.
-    is_first_scan_complete_ = true;
-    return;
-  }
-
-  DCHECK(polling_policy_ == NULL);
-  polling_policy_.reset(NewPollingPolicy());
-  DCHECK(polling_policy_ != NULL);
-
-  // Perform first scan ASAP regardless of the polling policy. If this scan
-  // fails we'll retry at a rate in line with the polling policy.
-  ScheduleNextScan(0);
-}
-
-void WifiDataProviderCommon::StopDataProvider() {
-  wlan_api_.reset();
-  polling_policy_.reset();
-}
-
-bool WifiDataProviderCommon::GetData(WifiData* data) {
-  *data = wifi_data_;
-  // If we've successfully completed a scan, indicate that we have all of the
-  // data we can get.
-  return is_first_scan_complete_;
-}
-
-void WifiDataProviderCommon::DoWifiScanTask() {
-  bool update_available = false;
-  WifiData new_data;
-  if (!wlan_api_->GetAccessPointData(&new_data.access_point_data)) {
-    ScheduleNextScan(polling_policy_->NoWifiInterval());
-  } else {
-    update_available = wifi_data_.DiffersSignificantly(new_data);
-    wifi_data_ = new_data;
-    polling_policy_->UpdatePollingInterval(update_available);
-    ScheduleNextScan(polling_policy_->PollingInterval());
-  }
-  if (update_available || !is_first_scan_complete_) {
-    is_first_scan_complete_ = true;
-    RunCallbacks();
-  }
-}
-
-void WifiDataProviderCommon::ScheduleNextScan(int interval) {
-  client_task_runner()->PostDelayedTask(
-      FROM_HERE, base::Bind(&WifiDataProviderCommon::DoWifiScanTask,
-                            weak_factory_.GetWeakPtr()),
-      base::TimeDelta::FromMilliseconds(interval));
-}
-
-}  // namespace content