Removing deprecated GTK-Views code.

ui/views/controls/textfield/gtk_views_entry.h

-// 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.
-
-#ifndef UI_VIEWS_CONTROLS_TEXTFIELD_GTK_VIEWS_ENTRY_H_
-#define UI_VIEWS_CONTROLS_TEXTFIELD_GTK_VIEWS_ENTRY_H_
-#pragma once
-
-#include <gdk/gdk.h>
-#include <gtk/gtkentry.h>
-
-namespace views {
-class NativeTextfieldGtk;
-}
-
-// GtkViewsEntry is a subclass of GtkEntry that can draw text when the text in
-// the entry is empty. For example, this could show the text 'password' in a
-// password field when the text is empty. GtkViewsEntry is used internally by
-// NativeTextfieldGtk.
-
-G_BEGIN_DECLS
-
-#define GTK_TYPE_VIEWS_ENTRY        (gtk_views_entry_get_type ())
-#define GTK_VIEWS_ENTRY(obj) \
-    (G_TYPE_CHECK_INSTANCE_CAST((obj), GTK_TYPE_VIEWS_ENTRY, GtkViewsEntry))
-#define GTK_VIEWS_ENTRY_CLASS(klass) \
-    (G_TYPE_CHECK_CLASS_CAST((klass), GTK_TYPE_VIEWS_ENTRY, GtkViewsEntryClass))
-#define GTK_IS_VIEWS_ENTRY(obj) \
-    (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_VIEWS_ENTRY))
-#define GTK_IS_VIEWS_ENTRY_CLASS(klass) \
-    (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_VIEWS_ENTRY))
-#define GTK_VIEWS_ENTRY_GET_CLASS(obj) \
-    (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_VIEWS_ENTRY, GtkViewsEntry))
-
-typedef struct _GtkViewsEntry        GtkViewsEntry;
-typedef struct _GtkViewsEntryClass   GtkViewsEntryClass;
-
-struct _GtkViewsEntry {
-  GtkEntry entry;
-  views::NativeTextfieldGtk* host;
-};
-
-struct _GtkViewsEntryClass {
-  GtkEntryClass parent_class;
-};
-
-GtkWidget* gtk_views_entry_new(views::NativeTextfieldGtk* host);
-
-GType gtk_views_entry_get_type();
-
-G_END_DECLS
-
-#endif  // UI_VIEWS_CONTROLS_TEXTFIELD_GTK_VIEWS_ENTRY_H_