Fix Ash on Windows multi-monitor support and snap-view sizing.

ui/aura/remote_root_window_host_win.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 "ui/aura/remote_root_window_host_win.h"
 
 #include <windows.h>
 
 #include <algorithm>
 
@@ skipping 143 matching lines @@
     IPC_MESSAGE_HANDLER(MetroViewerHostMsg_FileOpenDone,
                         OnFileOpenDone)
     IPC_MESSAGE_HANDLER(MetroViewerHostMsg_MultiFileOpenDone,
                         OnMultiFileOpenDone)
     IPC_MESSAGE_HANDLER(MetroViewerHostMsg_SelectFolderDone,
                         OnSelectFolderDone)
     IPC_MESSAGE_HANDLER(MetroViewerHostMsg_WindowActivated,
                         OnWindowActivated)
     IPC_MESSAGE_HANDLER(MetroViewerHostMsg_SetCursorPosAck,
                         OnSetCursorPosAck)
+    IPC_MESSAGE_HANDLER(MetroViewerHostMsg_WindowSizeChanged,
+                        OnWindowSizeChanged)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void RemoteRootWindowHostWin::HandleOpenFile(
     const string16& title,
     const base::FilePath& default_path,
     const string16& filter,
     const OpenFileCompletion& callback) {
@@ skipping 321 matching lines @@
 
 void RemoteRootWindowHostWin::OnWindowActivated(bool active) {
   active ? GetRootWindow()->Focus() : GetRootWindow()->Blur();
 }
 
 void RemoteRootWindowHostWin::OnSetCursorPosAck() {
   DCHECK(ignore_mouse_moves_until_set_cursor_ack_);
   ignore_mouse_moves_until_set_cursor_ack_ = false;
 }
 
+void RemoteRootWindowHostWin::OnWindowSizeChanged(int32 width, int32 height) {
+  SetBounds(gfx::Rect(0, 0, width, height));
+}
+
 void RemoteRootWindowHostWin::DispatchKeyboardMessage(ui::EventType type,
                                                       uint32 vkey,
                                                       uint32 repeat_count,
                                                       uint32 scan_code,
                                                       uint32 flags,
                                                       bool is_character) {
   if (base::MessageLoop::current()->IsNested()) {
     SetVirtualKeyStates(flags);
 
     uint32 message = is_character ? WM_CHAR :
         (type == ui::ET_KEY_PRESSED ? WM_KEYDOWN : WM_KEYUP);
     ::PostThreadMessage(::GetCurrentThreadId(),
                         message,
                         vkey,
                         repeat_count | scan_code >> 15);
   } else {
     ui::KeyEvent event(type,
                        ui::KeyboardCodeForWindowsKeyCode(vkey),
                        flags,
                        is_character);
     delegate_->OnHostKeyEvent(&event);
   }
 }
 
 }  // namespace aura