Add CoreLocation support to Chrome

chrome/browser/geolocation/core_location_provider_mac.mm

+// 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 "chrome/browser/geolocation/core_location_provider_mac.h"
+#include "chrome/browser/geolocation/core_location_data_provider_mac.h"
+
+#include "base/logging.h"
+#include "base/command_line.h"
+#include "chrome/common/chrome_switches.h"
+
+CoreLocationProviderMac::CoreLocationProviderMac() {
+  data_provider_ = new CoreLocationDataProviderMac();
+  data_provider_->AddRef();
+}
+
+CoreLocationProviderMac::~CoreLocationProviderMac() {
+  data_provider_->StopUpdating();
+  data_provider_->Release();
+}
+
+bool CoreLocationProviderMac::StartProvider(bool high_accuracy) {
+  data_provider_->StartUpdating(this);
+  return true;
+}
+
+void CoreLocationProviderMac::StopProvider() {
+  data_provider_->StopUpdating();
+}
+
+void CoreLocationProviderMac::GetPosition(Geoposition* position) {
+  DCHECK(position);
+  *position = position_;
+  DCHECK(position->IsInitialized());
+}
+
+void CoreLocationProviderMac::SetPosition(Geoposition* position) {
+  DCHECK(position);
+  position_ = *position;
+  DCHECK(position->IsInitialized());
+
+  UpdateListeners();
+}
+
+LocationProviderBase* NewSystemLocationProvider() {
+  if(CommandLine::ForCurrentProcess()
+     ->HasSwitch(switches::kEnableCoreLocation)) {
+    return new CoreLocationProviderMac;
+  }
+  return NULL;
+}