Move ContextMenuParams struct from webkit/glue to content/public/common. The reasons are:

chrome/browser/tab_contents/chrome_tab_contents_view_wrapper_gtk.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 "chrome/browser/tab_contents/chrome_tab_contents_view_wrapper_gtk.h"
 
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_gtk.h"
 #include "chrome/browser/tab_contents/web_drag_bookmark_handler_gtk.h"
 #include "chrome/browser/ui/gtk/constrained_window_gtk.h"
@@ skipping 79 matching lines @@
     gtk_widget_grab_focus(widget);
     *return_value = FALSE;
     return TRUE;
   }
 
   // Let the default TabContentsViewGtk::OnFocus() behaviour run.
   return FALSE;
 }
 
 void ChromeTabContentsViewWrapperGtk::ShowContextMenu(
-    const ContextMenuParams& params) {
+    const content::ContextMenuParams& params) {
   // Find out the RenderWidgetHostView that corresponds to the render widget on
   // which this context menu is showed, so that we can retrieve the last mouse
   // down event on the render widget and use it as the timestamp of the
   // activation event to show the context menu.
   RenderWidgetHostView* view = NULL;
   if (params.custom_context.render_widget_id !=
-      webkit_glue::CustomContextMenuContext::kCurrentRenderWidget) {
+      content::CustomContextMenuContext::kCurrentRenderWidget) {
     IPC::Channel::Listener* listener =
         view_->web_contents()->GetRenderProcessHost()->GetListenerByID(
             params.custom_context.render_widget_id);
     if (!listener) {
       NOTREACHED();
       return;
     }
     view = static_cast<RenderWidgetHost*>(listener)->view();
   } else {
     view = view_->web_contents()->GetRenderWidgetHostView();
@@ skipping 29 matching lines @@
   g_value_set_int(&value, child_x);
   gtk_container_child_set_property(GTK_CONTAINER(floating_container),
                                    widget, "x", &value);
 
   int child_y = std::max((allocation->height - requisition.height) / 2, 0);
   g_value_set_int(&value, child_y);
   gtk_container_child_set_property(GTK_CONTAINER(floating_container),
                                    widget, "y", &value);
   g_value_unset(&value);
 }