[Toolbar] Base toolbar button class with background images for button states

ui/views/controls/button/label_button_border.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 "ui/views/controls/button/label_button_border.h"
 
 #include "base/logging.h"
 #include "grit/ui_resources.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "third_party/skia/include/effects/SkLerpXfermode.h"
@@ skipping 40 matching lines @@
                  const ui::NativeTheme::ExtraParams& extra) {
   if (border->style() == Button::STYLE_NATIVE_TEXTBUTTON) {
     theme->Paint(canvas->sk_canvas(), part, state, rect, extra);
   } else {
     Painter* painter =
         border->GetPainter(extra.button.is_focused, GetButtonState(state));
     // Paint any corresponding unfocused painter if there is no focused painter.
     if (!painter && extra.button.is_focused)
       painter = border->GetPainter(false, GetButtonState(state));
     if (painter)
-      painter->Paint(canvas, rect.size());
+      Painter::PaintPainterAt(canvas, painter, rect);
   }
 }
 
 }  // namespace
 
 LabelButtonBorder::LabelButtonBorder(Button::ButtonStyle style)
     : style_(style) {
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   const gfx::Insets insets(kButtonInsets,
                            kButtonInsets,
@@ skipping 102 matching lines @@
   return painters_[focused ? 1 : 0][state].get();
 }
 
 void LabelButtonBorder::SetPainter(bool focused,
                                    Button::ButtonState state,
                                    Painter* painter) {
   painters_[focused ? 1 : 0][state].reset(painter);
 }
 
 }  // namespace views