[Views] Only paint background of text portion of LabelButton in inverted color theme.

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 124 matching lines @@
     paint.setXfermode(sk_lerp_xfer.get());
     canvas->sk_canvas()->saveLayer(&sk_rect, &paint);
     state = native_theme_delegate->GetForegroundThemeState(&extra);
     PaintHelper(this, canvas, theme, part, state, rect, extra);
     canvas->sk_canvas()->restore();
 
     canvas->sk_canvas()->restore();
   } else {
     PaintHelper(this, canvas, theme, part, state, rect, extra);
   }
-
-  // For inverted color schemes, draw a solid fill with the button color.
-  if (gfx::IsInvertedColorScheme()) {
-    rect.Inset(insets_);
-    canvas->FillRect(rect, extra.button.background_color);
-  }
 }
 
 gfx::Insets LabelButtonBorder::GetInsets() const {
   return insets_;
 }
 
 gfx::Size LabelButtonBorder::GetMinimumSize() const {
   gfx::Size minimum_size;
   for (int i = 0; i < 2; ++i) {
     for (int j = 0; j < Button::STATE_COUNT; ++j) {
       if (painters_[i][j])
         minimum_size.SetToMax(painters_[i][j]->GetMinimumSize());
     }
   }
   return minimum_size;
 }
 
 Painter* LabelButtonBorder::GetPainter(bool focused,
                                        Button::ButtonState state) {
   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