Relanding this change with the DesktopAuraTopLevelOwnedPopupResizeTest enabled only for Windows.

trunk/src/ui/views/widget/desktop_aura/desktop_native_widget_aura.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/views/widget/desktop_aura/desktop_native_widget_aura.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "ui/aura/client/activation_client.h"
 #include "ui/aura/client/aura_constants.h"
@@ skipping 87 matching lines @@
     top_level_handler->top_level_widget_ = new Widget();
     top_level_handler->top_level_widget_->Init(init_params);
 
     top_level_handler->top_level_widget_->SetFullscreen(full_screen);
     top_level_handler->top_level_widget_->Show();
 
     aura::Window* native_window =
         top_level_handler->top_level_widget_->GetNativeView();
     child_window->AddObserver(top_level_handler);
     native_window->AddObserver(top_level_handler);
+    top_level_handler->child_window_ = child_window;
     return native_window;
   }
 
   // aura::WindowObserver overrides
   virtual void OnWindowDestroying(aura::Window* window) OVERRIDE {
     window->RemoveObserver(this);
 
     // If the widget is being destroyed by the OS then we should not try and
     // destroy it again.
     if (top_level_widget_ &&
         window == top_level_widget_->GetNativeView()) {
       top_level_widget_ = NULL;
       return;
     }
 
     if (top_level_widget_) {
       DCHECK(top_level_widget_->GetNativeView());
       top_level_widget_->GetNativeView()->RemoveObserver(this);
       // When we receive a notification that the child of the window created
       // above is being destroyed we go ahead and initiate the destruction of
       // the corresponding widget.
       top_level_widget_->Close();
       top_level_widget_ = NULL;
     }
     delete this;
   }
 
+  virtual void OnWindowBoundsChanged(aura::Window* window,
+                                     const gfx::Rect& old_bounds,
+                                     const gfx::Rect& new_bounds) OVERRIDE {
+    if (top_level_widget_ && window == child_window_)
+      top_level_widget_->SetSize(new_bounds.size());
+  }
+
  private:
   DesktopNativeWidgetTopLevelHandler()
-      : top_level_widget_(NULL) {}
+      : top_level_widget_(NULL),
+        child_window_(NULL) {}
 
   virtual ~DesktopNativeWidgetTopLevelHandler() {}
 
   Widget* top_level_widget_;
+  aura::Window* child_window_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNativeWidgetTopLevelHandler);
 };
 
 class DesktopNativeWidgetAuraWindowTreeClient :
     public aura::client::WindowTreeClient {
  public:
   explicit DesktopNativeWidgetAuraWindowTreeClient(
       aura::Window* root_window)
       : root_window_(root_window) {
@@ skipping 964 matching lines @@
   input_method_event_filter_->SetInputMethodPropertyInRootWindow(
       root_window_->window());
   root_window_event_filter_->AddHandler(input_method_event_filter_.get());
 }
 
 void DesktopNativeWidgetAura::UpdateWindowTransparency() {
   content_window_->SetTransparent(ShouldUseNativeFrame());
 }
 
 }  // namespace views