Allow link drags from the star, bookmarks bar, and bookmark bar menus

chrome/browser/gtk/toolbar_star_toggle_gtk.cc

 // Copyright (c) 2009 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 "chrome/browser/gtk/toolbar_star_toggle_gtk.h"
 
 #include "app/gtk_dnd_util.h"
 #include "app/resource_bundle.h"
 #include "base/gfx/rect.h"
 #include "chrome/browser/browser.h"
@@ skipping 20 matching lines @@
                               unstarred_.Height());
 
   gtk_widget_set_app_paintable(widget_.get(), TRUE);
   // We effectively double-buffer by virtue of having only one image...
   gtk_widget_set_double_buffered(widget_.get(), FALSE);
 
   g_signal_connect(widget(), "expose-event",
                    G_CALLBACK(OnExpose), this);
   GTK_WIDGET_UNSET_FLAGS(widget_.get(), GTK_CAN_FOCUS);
 
-  gtk_drag_source_set(widget(), GDK_BUTTON1_MASK,
-                      NULL, 0, GDK_ACTION_COPY);
+  gtk_drag_source_set(widget(), GDK_BUTTON1_MASK, NULL, 0,
+      static_cast<GdkDragAction>(GDK_ACTION_COPY | GDK_ACTION_LINK));
   GtkDndUtil::SetSourceTargetListFromCodeMask(widget(),
                                               GtkDndUtil::TEXT_PLAIN |
                                               GtkDndUtil::TEXT_URI_LIST |
-                                              GtkDndUtil::CHROME_NAMED_URL);
+                                              GtkDndUtil::CHROME_NAMED_URL |
+                                              GtkDndUtil::NETSCAPE_URL);
   g_signal_connect(widget(), "drag-data-get", G_CALLBACK(OnDragDataGet), this);
 
   theme_provider_->InitThemesFor(this);
   registrar_.Add(this,
                  NotificationType::BROWSER_THEME_CHANGED,
                  NotificationService::AllSources());
 }
 
 ToolbarStarToggleGtk::~ToolbarStarToggleGtk() {
   widget_.Destroy();
@@ skipping 73 matching lines @@
                                 unstarred_.Height());
 
     gtk_widget_set_app_paintable(widget_.get(), TRUE);
     // We effectively double-buffer by virtue of having only one image...
     gtk_widget_set_double_buffered(widget_.get(), FALSE);
   }
 
   gtk_chrome_button_set_use_gtk_rendering(
       GTK_CHROME_BUTTON(widget_.get()), use_gtk);
 }