Move screen capturers from remoting/capturer to media/video/capturer/screen

remoting/capturer/win/desktop.cc

-// Copyright (c) 2012 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 "remoting/capturer/win/desktop.h"
-
-#include <vector>
-
-#include "base/logging.h"
-
-namespace remoting {
-
-Desktop::Desktop(HDESK desktop, bool own) : desktop_(desktop), own_(own) {
-}
-
-Desktop::~Desktop() {
-  if (own_ && desktop_ != NULL) {
-    if (!::CloseDesktop(desktop_)) {
-      LOG_GETLASTERROR(ERROR)
-          << "Failed to close the owned desktop handle";
-    }
-  }
-}
-
-bool Desktop::GetName(string16* desktop_name_out) const {
-  if (desktop_ == NULL)
-    return false;
-
-  DWORD length;
-  CHECK(!GetUserObjectInformationW(desktop_, UOI_NAME, NULL, 0, &length));
-  CHECK(GetLastError() == ERROR_INSUFFICIENT_BUFFER);
-
-  length /= sizeof(char16);
-  std::vector<char16> buffer(length);
-  if (!GetUserObjectInformationW(desktop_, UOI_NAME, &buffer[0],
-                                 length * sizeof(char16), &length)) {
-    LOG_GETLASTERROR(ERROR)
-        << "Failed to query the desktop name";
-    return false;
-  }
-
-  desktop_name_out->assign(&buffer[0], length / sizeof(char16));
-  return true;
-}
-
-bool Desktop::IsSame(const Desktop& other) const {
-  string16 name;
-  if (!GetName(&name))
-    return false;
-
-  string16 other_name;
-  if (!other.GetName(&other_name))
-    return false;
-
-  return name == other_name;
-}
-
-bool Desktop::SetThreadDesktop() const {
-  if (!::SetThreadDesktop(desktop_)) {
-    LOG_GETLASTERROR(ERROR)
-        << "Failed to assign the desktop to the current thread";
-    return false;
-  }
-
-  return true;
-}
-
-scoped_ptr<Desktop> Desktop::GetDesktop(const wchar_t* desktop_name) {
-  ACCESS_MASK desired_access =
-      DESKTOP_CREATEMENU | DESKTOP_CREATEWINDOW | DESKTOP_ENUMERATE |
-      DESKTOP_HOOKCONTROL | DESKTOP_WRITEOBJECTS | DESKTOP_READOBJECTS |
-      DESKTOP_SWITCHDESKTOP | GENERIC_WRITE;
-  HDESK desktop = OpenDesktop(desktop_name, 0, FALSE, desired_access);
-  if (desktop == NULL) {
-    LOG_GETLASTERROR(ERROR)
-        << "Failed to open the desktop '" << desktop_name << "'";
-    return scoped_ptr<Desktop>();
-  }
-
-  return scoped_ptr<Desktop>(new Desktop(desktop, true));
-}
-
-scoped_ptr<Desktop> Desktop::GetInputDesktop() {
-  HDESK desktop = OpenInputDesktop(
-                      0, FALSE, GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE);
-  if (desktop == NULL)
-    return scoped_ptr<Desktop>();
-
-  return scoped_ptr<Desktop>(new Desktop(desktop, true));
-}
-
-scoped_ptr<Desktop> Desktop::GetThreadDesktop() {
-  HDESK desktop = ::GetThreadDesktop(GetCurrentThreadId());
-  if (desktop == NULL) {
-    LOG_GETLASTERROR(ERROR)
-        << "Failed to retrieve the handle of the desktop assigned to "
-           "the current thread";
-    return scoped_ptr<Desktop>();
-  }
-
-  return scoped_ptr<Desktop>(new Desktop(desktop, false));
-}
-
-}  // namespace remoting