Add Device Policy Handler for Bluetooth, and allow disabling the Bluetooth adapter on Chrome OS

device/bluetooth/bluetooth_adapter_bluez.cc

 // Copyright 2013 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 "device/bluetooth/bluetooth_adapter_bluez.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 135 matching lines @@
                         base::Bind(&OnUnregisterAgentError));
 
   agent_.reset();
   dbus_is_shutdown_ = true;
 }
 
 BluetoothAdapterBlueZ::BluetoothAdapterBlueZ(const InitCallback& init_callback)
     : init_callback_(init_callback),
       initialized_(false),
       dbus_is_shutdown_(false),
+      is_disabled_(false),
       num_discovery_sessions_(0),
       discovery_request_pending_(false),
       weak_ptr_factory_(this) {
   ui_task_runner_ = base::ThreadTaskRunnerHandle::Get();
   socket_thread_ = device::BluetoothSocketThread::Get();
 
   // Can't initialize the adapter until DBus clients are ready.
   if (bluez::BluezDBusManager::Get()->IsObjectManagerSupportKnown()) {
     base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE, base::Bind(&BluetoothAdapterBlueZ::Init,
@@ skipping 81 matching lines @@
           name,
           base::Bind(&BluetoothAdapterBlueZ::OnPropertyChangeCompleted,
                      weak_ptr_factory_.GetWeakPtr(), callback, error_callback));
 }
 
 bool BluetoothAdapterBlueZ::IsInitialized() const {
   return initialized_;
 }
 
 bool BluetoothAdapterBlueZ::IsPresent() const {
-  return !dbus_is_shutdown_ && !object_path_.value().empty();
+  return !is_disabled_ && !dbus_is_shutdown_ && !object_path_.value().empty();
+}
+
+void BluetoothAdapterBlueZ::SetDisabled(bool disabled) {
+  if (disabled) {
+    SetPowered(false, base::Bind(&base::DoNothing),
+                      base::Bind(&base::DoNothing));
+  }
+  is_disabled_ = disabled;
 }
 
 bool BluetoothAdapterBlueZ::IsPowered() const {
   if (!IsPresent())
     return false;
 
   bluez::BluetoothAdapterClient::Properties* properties =
       bluez::BluezDBusManager::Get()
           ->GetBluetoothAdapterClient()
           ->GetProperties(object_path_);
@@ skipping 1169 matching lines @@
 
     // If the queued request resulted in a pending call, then let it
     // asynchonously process the remaining queued requests once the pending
     // call returns.
     if (discovery_request_pending_)
       return;
   }
 }
 
 }  // namespace bluez