linux aura: Show the drag-image when available.

ui/views/widget/widget.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/widget.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 55 matching lines @@
 
 }  // namespace
 
 // A default implementation of WidgetDelegate, used by Widget when no
 // WidgetDelegate is supplied.
 class DefaultWidgetDelegate : public WidgetDelegate {
  public:
   DefaultWidgetDelegate(Widget* widget, const Widget::InitParams& params)
       : widget_(widget),
         can_activate_(!params.child &&
-                      params.type != Widget::InitParams::TYPE_POPUP) {
+                      params.type != Widget::InitParams::TYPE_POPUP &&
+                      params.type != Widget::InitParams::TYPE_DRAG) {
   }
   virtual ~DefaultWidgetDelegate() {}
 
   // Overridden from WidgetDelegate:
   virtual void DeleteDelegate() OVERRIDE {
     delete this;
   }
   virtual Widget* GetWidget() OVERRIDE {
     return widget_;
   }
@@ skipping 47 matching lines @@
 
 Widget::InitParams::InitParams(Type type)
     : type(type),
       delegate(NULL),
       child(type == TYPE_CONTROL),
       opacity(((type == TYPE_WINDOW || type == TYPE_PANEL) &&
                ViewsDelegate::views_delegate &&
                ViewsDelegate::views_delegate->UseTransparentWindows()) ?
               TRANSLUCENT_WINDOW : INFER_OPACITY),
       accept_events(true),
-      can_activate(type != TYPE_POPUP && type != TYPE_MENU),
-      keep_on_top(type == TYPE_MENU),
+      can_activate(type != TYPE_POPUP && type != TYPE_MENU &&
+                   type != TYPE_DRAG),
+      keep_on_top(type == TYPE_MENU || type == TYPE_DRAG),
       ownership(NATIVE_WIDGET_OWNS_WIDGET),
       mirror_origin_in_rtl(false),
       has_dropshadow(false),
       remove_standard_frame(false),
       use_system_default_icon(false),
       show_state(ui::SHOW_STATE_DEFAULT),
       double_buffer(false),
       parent(NULL),
       native_widget(NULL),
       desktop_root_window_host(NULL),
@@ skipping 1271 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views