ash: Disable some entries in the network tray-popup instead of removing them.

ash/system/tray/tray_views.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 "ash/system/tray/tray_views.h"
 
 #include "ash/system/tray/tray_constants.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "grit/ash_strings.h"
 #include "grit/ui_resources.h"
@@ skipping 86 matching lines @@
 }
 
 void HoverHighlightView::AddLabel(const string16& text,
                                   gfx::Font::FontStyle style) {
   SetLayoutManager(new views::FillLayout());
   views::Label* label = new views::Label(text);
   label->set_border(views::Border::CreateEmptyBorder(
       5, kTrayPopupDetailsIconWidth + kIconPaddingLeft, 5, 0));
   label->SetHorizontalAlignment(views::Label::ALIGN_LEFT);
   label->SetFont(label->font().DeriveFont(0, style));
+  label->SetDisabledColor(SkColorSetARGB(127, 0, 0, 0));
   AddChildView(label);
 
   accessible_name_ = text;
 }
 
 void HoverHighlightView::SetAccessibleName(const string16& name) {
   accessible_name_ = name;
 }
 
 bool HoverHighlightView::PerformAction(const views::Event& event) {
@@ skipping 11 matching lines @@
 void HoverHighlightView::OnMouseExited(const views::MouseEvent& event) {
   hover_ = false;
   SchedulePaint();
 }
 
 void HoverHighlightView::GetAccessibleState(ui::AccessibleViewState* state) {
   state->role = ui::AccessibilityTypes::ROLE_PUSHBUTTON;
   state->name = accessible_name_;
 }
 
+void HoverHighlightView::OnEnabledChanged() {
+  for (int i = 0; i < child_count(); ++i)
+    child_at(i)->SetEnabled(enabled());
+}
+
 void HoverHighlightView::OnPaintBackground(gfx::Canvas* canvas) {
   canvas->DrawColor(hover_ ? highlight_color_ : default_color_);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // FixedSizedScrollView
 
 FixedSizedScrollView::FixedSizedScrollView() {
   set_focusable(true);
   set_notify_enter_exit_on_child(true);
@@ skipping 56 matching lines @@
   label->SetAutoColorReadabilityEnabled(false);
   label->SetEnabledColor(SK_ColorWHITE);
   label->SetBackgroundColor(SkColorSetARGB(0, 255, 255, 255));
   label->SetShadowColors(SkColorSetARGB(64, 0, 0, 0),
                          SkColorSetARGB(64, 0, 0, 0));
   label->SetShadowOffset(0, 1);
 }
 
 }  // namespace internal
 }  // namespace ash