linux and chromeos: Turn on -Wunused-const-variable.

ash/shelf/app_list_button.cc

 // Copyright 2013 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/shelf/app_list_button.h"
 
 #include <vector>
 
 #include "ash/launcher/launcher_button_host.h"
 #include "ash/launcher/launcher_types.h"
 #include "grit/ash_resources.h"
 #include "grit/ash_strings.h"
 #include "ui/base/accessibility/accessible_view_state.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/layer_animation_element.h"
 #include "ui/compositor/layer_animation_sequence.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
 
 namespace ash {
 namespace internal {
 
-namespace {
-
 const int kAnimationDurationInMs = 600;
 const float kAnimationOpacity[] = { 1.0f, 0.4f, 1.0f };
-const int kBorderSize = 9;
-}  // namespace
 
 AppListButton::AppListButton(views::ButtonListener* listener,
                              LauncherButtonHost* host)
     : views::ImageButton(listener),
       host_(host) {
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
   SetImage(
       views::CustomButton::STATE_NORMAL,
       rb.GetImageNamed(IDR_AURA_LAUNCHER_ICON_APPLIST).ToImageSkia());
   SetImage(
@@ skipping 85 matching lines @@
   host_->MouseExitedButton(this);
 }
 
 void AppListButton::GetAccessibleState(ui::AccessibleViewState* state) {
   state->role = ui::AccessibilityTypes::ROLE_PUSHBUTTON;
   state->name = host_->GetAccessibleName(this);
 }
 
 }  // namespace internal
 }  // namespace ash