Deleted OS_WIN and all Windows specific files from base.

base/win/message_window.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 "base/win/message_window.h"
-
-#include "base/lazy_instance.h"
-#include "base/logging.h"
-#include "base/process/memory.h"
-#include "base/profiler/scoped_tracker.h"
-#include "base/win/wrapped_window_proc.h"
-
-const wchar_t kMessageWindowClassName[] = L"Chrome_MessageWindow";
-
-namespace base {
-namespace win {
-
-// Used along with LazyInstance to register a window class for message-only
-// windows created by MessageWindow.
-class MessageWindow::WindowClass {
- public:
-  WindowClass();
-  ~WindowClass();
-
-  ATOM atom() { return atom_; }
-  HINSTANCE instance() { return instance_; }
-
- private:
-  ATOM atom_;
-  HINSTANCE instance_;
-
-  DISALLOW_COPY_AND_ASSIGN(WindowClass);
-};
-
-static LazyInstance<MessageWindow::WindowClass> g_window_class =
-    LAZY_INSTANCE_INITIALIZER;
-
-MessageWindow::WindowClass::WindowClass()
-    : atom_(0),
-      instance_(base::GetModuleFromAddress(&MessageWindow::WindowProc)) {
-  WNDCLASSEX window_class;
-  window_class.cbSize = sizeof(window_class);
-  window_class.style = 0;
-  window_class.lpfnWndProc = &base::win::WrappedWindowProc<WindowProc>;
-  window_class.cbClsExtra = 0;
-  window_class.cbWndExtra = 0;
-  window_class.hInstance = instance_;
-  window_class.hIcon = NULL;
-  window_class.hCursor = NULL;
-  window_class.hbrBackground = NULL;
-  window_class.lpszMenuName = NULL;
-  window_class.lpszClassName = kMessageWindowClassName;
-  window_class.hIconSm = NULL;
-  atom_ = RegisterClassEx(&window_class);
-  if (atom_ == 0) {
-    PLOG(ERROR)
-        << "Failed to register the window class for a message-only window";
-  }
-}
-
-MessageWindow::WindowClass::~WindowClass() {
-  if (atom_ != 0) {
-    BOOL result = UnregisterClass(MAKEINTATOM(atom_), instance_);
-    // Hitting this DCHECK usually means that some MessageWindow objects were
-    // leaked. For example not calling
-    // ui::Clipboard::DestroyClipboardForCurrentThread() results in a leaked
-    // MessageWindow.
-    DCHECK(result);
-  }
-}
-
-MessageWindow::MessageWindow()
-    : window_(NULL) {
-}
-
-MessageWindow::~MessageWindow() {
-  DCHECK(CalledOnValidThread());
-
-  if (window_ != NULL) {
-    BOOL result = DestroyWindow(window_);
-    DCHECK(result);
-  }
-}
-
-bool MessageWindow::Create(const MessageCallback& message_callback) {
-  return DoCreate(message_callback, NULL);
-}
-
-bool MessageWindow::CreateNamed(const MessageCallback& message_callback,
-                                const string16& window_name) {
-  return DoCreate(message_callback, window_name.c_str());
-}
-
-// static
-HWND MessageWindow::FindWindow(const string16& window_name) {
-  return FindWindowEx(HWND_MESSAGE, NULL, kMessageWindowClassName,
-                      window_name.c_str());
-}
-
-bool MessageWindow::DoCreate(const MessageCallback& message_callback,
-                             const wchar_t* window_name) {
-  DCHECK(CalledOnValidThread());
-  DCHECK(message_callback_.is_null());
-  DCHECK(!window_);
-
-  message_callback_ = message_callback;
-
-  WindowClass& window_class = g_window_class.Get();
-  window_ = CreateWindow(MAKEINTATOM(window_class.atom()), window_name, 0, 0, 0,
-                         0, 0, HWND_MESSAGE, 0, window_class.instance(), this);
-  if (!window_) {
-    PLOG(ERROR) << "Failed to create a message-only window";
-    return false;
-  }
-
-  return true;
-}
-
-// static
-LRESULT CALLBACK MessageWindow::WindowProc(HWND hwnd,
-                                           UINT message,
-                                           WPARAM wparam,
-                                           LPARAM lparam) {
-  MessageWindow* self = reinterpret_cast<MessageWindow*>(
-      GetWindowLongPtr(hwnd, GWLP_USERDATA));
-
-  switch (message) {
-    // Set up the self before handling WM_CREATE.
-    case WM_CREATE: {
-      CREATESTRUCT* cs = reinterpret_cast<CREATESTRUCT*>(lparam);
-      self = reinterpret_cast<MessageWindow*>(cs->lpCreateParams);
-
-      // Make |hwnd| available to the message handler. At this point the control
-      // hasn't returned from CreateWindow() yet.
-      self->window_ = hwnd;
-
-      // Store pointer to the self to the window's user data.
-      SetLastError(ERROR_SUCCESS);
-      LONG_PTR result = SetWindowLongPtr(
-          hwnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(self));
-      CHECK(result != 0 || GetLastError() == ERROR_SUCCESS);
-      break;
-    }
-
-    // Clear the pointer to stop calling the self once WM_DESTROY is
-    // received.
-    case WM_DESTROY: {
-      SetLastError(ERROR_SUCCESS);
-      LONG_PTR result = SetWindowLongPtr(hwnd, GWLP_USERDATA, NULL);
-      CHECK(result != 0 || GetLastError() == ERROR_SUCCESS);
-      break;
-    }
-  }
-
-  // Handle the message.
-  if (self) {
-    LRESULT message_result;
-    if (self->message_callback_.Run(message, wparam, lparam, &message_result))
-      return message_result;
-  }
-
-  return DefWindowProc(hwnd, message, wparam, lparam);
-}
-
-}  // namespace win
-}  // namespace base