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/lazy_instance.h" 13 #include "base/synchronization/lock.h" 14 #include "content/public/browser/browser_thread.h" 15 #include "device/usb/usb_device_handle.h" 16 #include "extensions/browser/api/api_resource.h" 17 #include "extensions/common/api/usb.h" 18 19 using content::BrowserThread; 20 using device::UsbDeviceHandle; 21 22 namespace extensions { 23 24 static base::LazyInstance< 25 BrowserContextKeyedAPIFactory<ApiResourceManager<UsbDeviceResource> > > 26 g_factory = LAZY_INSTANCE_INITIALIZER; 27 28 // static 29 template <> 30 BrowserContextKeyedAPIFactory<ApiResourceManager<UsbDeviceResource> >* GetFactoryInstance()31ApiResourceManager<UsbDeviceResource>::GetFactoryInstance() { 32 return g_factory.Pointer(); 33 } 34 UsbDeviceResource(const std::string & owner_extension_id,scoped_refptr<UsbDeviceHandle> device)35UsbDeviceResource::UsbDeviceResource(const std::string& owner_extension_id, 36 scoped_refptr<UsbDeviceHandle> device) 37 : ApiResource(owner_extension_id), device_(device) { 38 } 39 ~UsbDeviceResource()40UsbDeviceResource::~UsbDeviceResource() { 41 device_->Close(); 42 } 43 IsPersistent() const44bool UsbDeviceResource::IsPersistent() const { 45 return false; 46 } 47 48 } // namespace extensions 49