Resize the widget when top level popup windows created by the content layer are resized.

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 114 matching lines @@
       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 != top_level_widget_->GetNativeView())

[sky, 2014/01/07 16:36:33]

Rather than window != can you test for the window you care about?

[ananta, 2014/01/07 18:56:08]

Done. Added a child_window_ member to track the parented popup.

+      top_level_widget_->SetSize(new_bounds.size());
+  }
+
  private:
   DesktopNativeWidgetTopLevelHandler()
       : top_level_widget_(NULL) {}
 
   virtual ~DesktopNativeWidgetTopLevelHandler() {}
 
   Widget* top_level_widget_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNativeWidgetTopLevelHandler);
 };
@@ skipping 971 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