Fix popup window repositioning in Desktop Chrome.

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/aura_constants.h"
 #include "ui/aura/client/cursor_client.h"
@@ skipping 127 matching lines @@
       // the corresponding widget.
       top_level_widget_->Close();
       top_level_widget_ = NULL;
     }
     delete this;
   }
 
   void OnWindowBoundsChanged(aura::Window* window,
                              const gfx::Rect& old_bounds,
                              const gfx::Rect& new_bounds) override {
+    // The position of the window may have changed. Hence we use SetBounds in
+    // place of SetSize. We need to pass the bounds in screen coordinates to
+    // the Widget::SetBounds function.
     if (top_level_widget_ && window == child_window_)
-      top_level_widget_->SetSize(new_bounds.size());
+      top_level_widget_->SetBounds(window->GetBoundsInScreen());
   }
 
  private:
   DesktopNativeWidgetTopLevelHandler()
       : top_level_widget_(NULL),
         child_window_(NULL) {}
 
   ~DesktopNativeWidgetTopLevelHandler() override {}
 
   Widget* top_level_widget_;
@@ skipping 1069 matching lines @@
   if (cursor_reference_count_ == 0) {
     // We are the last DesktopNativeWidgetAura instance, and we are responsible
     // for cleaning up |cursor_manager_|.
     delete cursor_manager_;
     native_cursor_manager_ = NULL;
     cursor_manager_ = NULL;
   }
 }
 
 }  // namespace views