aura: Some changes in Window and Desktop.

ui/aura/desktop_host_linux.cc

 // Copyright (c) 2011 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/desktop_host.h"
 
 #include "base/message_loop.h"
 #include "base/message_pump_x.h"
 #include "ui/aura/desktop.h"
 #include "ui/aura/event.h"
@@ skipping 80 matching lines @@
     case MotionNotify: {
       MouseEvent mouseev(xev);
       handled = desktop_->OnMouseEvent(mouseev);
       break;
     }
 
     case ConfigureNotify: {
       DCHECK_EQ(xdisplay_, xev->xconfigure.display);
       DCHECK_EQ(xwindow_, xev->xconfigure.window);
       DCHECK_EQ(xwindow_, xev->xconfigure.event);
-      desktop_->OnHostResized(gfx::Size(xev->xconfigure.width,
-                                        xev->xconfigure.height));
+
+      // It's possible that the X window may be resized by some other means than
+      // from within aura (e.g. the X window manager can change the size). Make
+      // sure the desktop size is maintained properly.
+      gfx::Size size(xev->xconfigure.width, xev->xconfigure.height);
+      if (bounds_.size() != size)
+        bounds_.set_size(size);
+      desktop_->OnHostResized(size);
       handled = true;
       break;
     }
   }
   return handled ? EVENT_PROCESSED : EVENT_IGNORED;
 }
 
 void DesktopHostLinux::SetDesktop(Desktop* desktop) {
   desktop_ = desktop;
 }
@@ skipping 24 matching lines @@
 }
 
 }  // namespace
 
 // static
 DesktopHost* DesktopHost::Create(const gfx::Rect& bounds) {
   return new DesktopHostLinux(bounds);
 }
 
 }  // namespace aura