Revert 247926 "HID backend"

trunk/src/device/hid/hid_service.cc

Index: trunk/src/device/hid/hid_service.cc
===================================================================
--- trunk/src/device/hid/hid_service.cc	(revision 247933)
+++ trunk/src/device/hid/hid_service.cc	(working copy)
@@ -1,106 +0,0 @@
-// Copyright 2014 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/hid/hid_service.h"
-
-#include <vector>
-
-#include "base/lazy_instance.h"
-#include "base/logging.h"
-#include "base/memory/scoped_vector.h"
-#include "base/message_loop/message_loop.h"
-#include "base/threading/thread_restrictions.h"
-#include "build/build_config.h"
-#include "device/hid/hid_device_info.h"
-
-#if defined(OS_LINUX)
-#include "device/hid/hid_service_linux.h"
-#elif defined(OS_MACOSX)
-#include "device/hid/hid_service_mac.h"
-#else
-#include "device/hid/hid_service_win.h"
-#endif
-
-namespace device {
-
-namespace {
-
-// The instance will be reset when message loop destroys.
-base::LazyInstance<scoped_ptr<HidService> >::Leaky g_hid_service_ptr =
-    LAZY_INSTANCE_INITIALIZER;
-
-}  // namespace
-
-HidService::HidService() : initialized_(false) {
-  base::ThreadRestrictions::AssertIOAllowed();
-  DCHECK(thread_checker_.CalledOnValidThread());
-  base::MessageLoop::current()->AddDestructionObserver(this);
-}
-
-HidService::~HidService() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  base::MessageLoop::current()->RemoveDestructionObserver(this);
-}
-
-void HidService::WillDestroyCurrentMessageLoop() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  g_hid_service_ptr.Get().reset(NULL);
-}
-
-void HidService::GetDevices(std::vector<HidDeviceInfo>* devices) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  STLClearObject(devices);
-  for (DeviceMap::iterator it = devices_.begin();
-      it != devices_.end();
-      ++it) {
-    devices->push_back(it->second);
-  }
-}
-
-// Fills in the device info struct of the given device_id.
-bool HidService::GetInfo(std::string device_id, HidDeviceInfo* info) const {
-  DeviceMap::const_iterator it = devices_.find(device_id);
-  if (it == devices_.end())
-    return false;
-  *info = it->second;
-  return true;
-}
-
-void HidService::AddDevice(HidDeviceInfo info) {
-  if (!ContainsKey(devices_, info.device_id)) {
-    DCHECK(thread_checker_.CalledOnValidThread());
-    devices_[info.device_id] = info;
-  }
-}
-
-void HidService::RemoveDevice(std::string device_id) {
-  if (ContainsKey(devices_, device_id)) {
-    DCHECK(thread_checker_.CalledOnValidThread());
-    devices_.erase(device_id);
-  }
-}
-
-HidService* HidService::CreateInstance() {
-#if defined(OS_LINUX)
-    return new HidServiceLinux();
-#elif defined(OS_MACOSX)
-    return new HidServiceMac();
-#elif defined(OS_WIN)
-    return new HidServiceWin();
-#else
-    return NULL;
-#endif
-}
-
-HidService* HidService::GetInstance() {
-  if (!g_hid_service_ptr.Get().get()){
-    scoped_ptr<HidService> service(CreateInstance());
-
-    if (service && service->initialized())
-      g_hid_service_ptr.Get().reset(service.release());
-  }
-  return g_hid_service_ptr.Get().get();
-}
-
-}  // namespace device