Cleanup: Remove unneeded forward declarations in views.

views/controls/table/table_view.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 VIEWS_CONTROLS_TABLE_TABLE_VIEW_H_
 #define VIEWS_CONTROLS_TABLE_TABLE_VIEW_H_
 #pragma once
 
 #include <map>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/string16.h"
 #include "build/build_config.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/base/models/table_model_observer.h"
 #include "views/views_export.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 
 // TODO(port): remove the ifdef when native_control.h is ported.
 #include "views/controls/native_control.h"
 
 typedef struct tagNMLVCUSTOMDRAW NMLVCUSTOMDRAW;
 #endif  // defined(OS_WIN)
 
-class SkBitmap;
-
 namespace gfx {
 class Font;
 }
 
 namespace ui {
 struct TableColumn;
 class TableModel;
 }
 
 // A TableView is a view that displays multiple rows with any number of columns.
@@ skipping 455 matching lines @@
 
   string16 alt_text_;
 
   DISALLOW_COPY_AND_ASSIGN(TableView);
 };
 #endif  // defined(OS_WIN)
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_TABLE_TABLE_VIEW_H_