LabelButton: Set the label's disabled status to match that of the button

ui/views/controls/button/label_button.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.h"
 
 #include "base/logging.h"
 #include "grit/ui_resources.h"
 #include "ui/base/animation/throb_animation.h"
 #include "ui/base/resource/resource_bundle.h"
@@ skipping 135 matching lines @@
     }
   }
 }
 
 void LabelButton::StateChanged() {
   const gfx::Size previous_image_size(image_->GetPreferredSize());
   image_->SetImage(GetImage(state()));
   const SkColor color = button_state_colors_[state()];
   if (state() != STATE_DISABLED && label_->enabled_color() != color)
     label_->SetEnabledColor(color);
+  label_->SetEnabled(state() != STATE_DISABLED);
   if (image_->GetPreferredSize() != previous_image_size)
     Layout();
 }
 
 gfx::Size LabelButton::GetPreferredSize() {
   gfx::Size size(label_->GetPreferredSize());
   const gfx::Size image_size(image_->GetPreferredSize());
   if (image_size.width() > 0 && size.width() > 0)
     size.Enlarge(kSpacing, 0);
   size.set_height(std::max(size.height(), image_size.height()));
@@ skipping 111 matching lines @@
   params->button.indeterminate = false;
   params->button.is_default = default_button();
   params->button.is_focused = HasFocus() && IsAccessibilityFocusable();
   params->button.has_border = native_theme();
   params->button.classic_state = 0;
   params->button.background_color = GetNativeTheme()->GetSystemColor(
       ui::NativeTheme::kColorId_TextButtonBackgroundColor);
 }
 
 }  // namespace views