extensions/browser/api/usb/usb_device_resource.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "extensions/browser/api/usb/usb_device_resource.h"
   6
   7 #include <string>
   8 #include <vector>
   9
  10 #include "base/bind.h"
  11 #include "base/bind_helpers.h"
  12 #include "base/synchronization/lock.h"
  13 #include "components/usb_service/usb_device_handle.h"
  14 #include "content/public/browser/browser_thread.h"
  15 #include "extensions/browser/api/api_resource.h"
  16 #include "extensions/common/api/usb.h"
  17
  18 using content::BrowserThread;
  19 using usb_service::UsbDeviceHandle;
  20
  21 namespace extensions {
  22
  23 static base::LazyInstance<
  24     BrowserContextKeyedAPIFactory<ApiResourceManager<UsbDeviceResource> > >
  25     g_factory = LAZY_INSTANCE_INITIALIZER;
  26
  27 // static
  28 template <>
  29 BrowserContextKeyedAPIFactory<ApiResourceManager<UsbDeviceResource> >*
  30 ApiResourceManager<UsbDeviceResource>::GetFactoryInstance() {
  31   return g_factory.Pointer();
  32 }
  33
  34 UsbDeviceResource::UsbDeviceResource(const std::string& owner_extension_id,
  35                                      scoped_refptr<UsbDeviceHandle> device)
  36     : ApiResource(owner_extension_id), device_(device) {
  37 }
  38
  39 UsbDeviceResource::~UsbDeviceResource() {
  40   BrowserThread::PostTask(BrowserThread::FILE,
  41                           FROM_HERE,
  42                           base::Bind(&UsbDeviceHandle::Close, device_));
  43 }
  44
  45 }  // namespace extensions