Rework the way Widget::Init works:

chrome/browser/ui/views/tab_contents/tab_contents_view_gtk.cc

 // Copyright (c) 2011 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/ui/views/tab_contents/tab_contents_view_gtk.h"
 
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
 #include "base/string_util.h"
@@ skipping 85 matching lines @@
 
 }  // namespace
 
 // static
 TabContentsView* TabContentsView::Create(TabContents* tab_contents) {
   return new TabContentsViewGtk(tab_contents);
 }
 
 TabContentsViewGtk::TabContentsViewGtk(TabContents* tab_contents)
     : TabContentsView(tab_contents),
-      views::WidgetGtk(TYPE_CHILD),
       sad_tab_(NULL),
       ignore_next_char_event_(false) {
   drag_source_.reset(new TabContentsDragSource(this));
   last_focused_view_storage_id_ =
       views::ViewStorage::GetInstance()->CreateStorageID();
 }
 
 TabContentsViewGtk::~TabContentsViewGtk() {
   // Make sure to remove any stored view we may still have in the ViewStorage.
   //
@@ skipping 26 matching lines @@
     ConstrainedWindowGtk* constrained_window) {
   std::vector<ConstrainedWindowGtk*>::iterator item =
       find(constrained_windows_.begin(), constrained_windows_.end(),
            constrained_window);
   DCHECK(item != constrained_windows_.end());
   RemoveChild((*item)->widget());
   constrained_windows_.erase(item);
 }
 
 void TabContentsViewGtk::CreateView(const gfx::Size& initial_size) {
-  set_delete_on_destroy(false);
-  WidgetGtk::Init(NULL, gfx::Rect(0, 0, initial_size.width(),
-                                  initial_size.height()));
+  views::Widget::CreateParams params(views::Widget::CreateParams::TYPE_CONTROL);
+  params.delete_on_destroy = false;
+  params.bounds = gfx::Rect(initial_size);
+  GetWidget()->Init(params);
   // We need to own the widget in order to attach/detach the native view
   // to container.
   gtk_object_ref(GTK_OBJECT(GetNativeView()));
 }
 
 RenderWidgetHostView* TabContentsViewGtk::CreateViewForWidget(
     RenderWidgetHost* render_widget_host) {
   if (render_widget_host->view()) {
     // During testing, the view will already be set up in most cases to the
     // test view, so we don't want to clobber it with a real one. To verify that
@@ skipping 313 matching lines @@
 // not NULL, else our delegate.
 gboolean TabContentsViewGtk::OnMouseMove(GtkWidget* widget,
                                          GdkEventMotion* event) {
   if (sad_tab_ != NULL)
     WidgetGtk::OnMotionNotify(widget, event);
   else if (tab_contents()->delegate())
     tab_contents()->delegate()->ContentsMouseEvent(
         tab_contents(), views::Screen::GetCursorScreenPoint(), true);
   return FALSE;
 }