views: Implement NativeTableGtk::RemoveColumn method.

views/controls/table/native_table_gtk.cc

 // Copyright (c) 2010 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 "views/controls/table/native_table_gtk.h"
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
@@ skipping 51 matching lines @@
 gfx::NativeView NativeTableGtk::GetTestingHandle() const {
   // Note that we are returning the tree view, not the scrolled window as
   // arguably the tests need to access the tree view.
   return GTK_WIDGET(tree_view_);
 }
 
 void NativeTableGtk::InsertColumn(const TableColumn& column, int index) {
   NOTIMPLEMENTED();
 }
 
-void NativeTableGtk::RemoveColumn(int index) {
-  NOTIMPLEMENTED();
+void NativeTableGtk::RemoveColumn(int column_index) {
+  if (!native_view())
+    return;
+
+  GtkTreeViewColumn* column = gtk_tree_view_get_column(tree_view_,
+                                                       column_index);
+  if (column) {
+    gtk_tree_view_remove_column(tree_view_, column);
+
+    if (table_->model()->RowCount() > 0)
+      OnRowsChanged(0, table_->model()->RowCount() - 1);
+  }
 }
 
 int NativeTableGtk::GetColumnWidth(int column_index) const {
   GtkTreeViewColumn* column = gtk_tree_view_get_column(tree_view_,
                                                        column_index);
-  return gtk_tree_view_column_get_width(column);
+  return column ? gtk_tree_view_column_get_width(column) : -1;
 }
 
 void NativeTableGtk::SetColumnWidth(int column_index, int width) {
   GtkTreeViewColumn* column = gtk_tree_view_get_column(tree_view_,
                                                        column_index);
   column->width = width;
   column->resized_width = width;
   column->use_resized_width = TRUE;
   // Needed for use_resized_width to be effective.
   gtk_widget_queue_resize(GTK_WIDGET(tree_view_));
@@ skipping 261 matching lines @@
   SkBitmap icon = table_->model()->GetIcon(row);
   return gfx::GdkPixbufFromSkBitmap(&icon);
 }
 
 // static
 NativeTableWrapper* NativeTableWrapper::CreateNativeWrapper(TableView2* table) {
   return new NativeTableGtk(table);
 }
 
 }  // namespace views