Remove auto raw pointer deduction from non-linux specific code.

ash/common/system/chromeos/tray_tracing.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/common/system/chromeos/tray_tracing.h"
 
 #include "ash/common/metrics/user_metrics_action.h"
 #include "ash/common/strings/grit/ash_strings.h"
 #include "ash/common/system/tray/actionable_view.h"
 #include "ash/common/system/tray/fixed_sized_image_view.h"
@@ skipping 17 matching lines @@
 namespace tray {
 
 class DefaultTracingView : public ActionableView {
  public:
   explicit DefaultTracingView(SystemTrayItem* owner)
       : ActionableView(owner, TrayPopupInkDropStyle::FILL_BOUNDS) {
     SetLayoutManager(new views::FillLayout);
     TriView* tri_view = TrayPopupUtils::CreateDefaultRowView();
     AddChildView(tri_view);
 
-    auto image = TrayPopupUtils::CreateMainImageView();
+    auto* image = TrayPopupUtils::CreateMainImageView();
     tri_view->AddView(TriView::Container::START, image);
 
-    auto label = TrayPopupUtils::CreateDefaultLabel();
+    auto* label = TrayPopupUtils::CreateDefaultLabel();
     label->SetMultiLine(true);
     label->SetText(l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_TRACING));
     tri_view->AddView(TriView::Container::CENTER, label);
 
     TrayPopupItemStyle style(TrayPopupItemStyle::FontStyle::DEFAULT_VIEW_LABEL);
     style.SetupLabel(label);
     image->SetImage(
         gfx::CreateVectorIcon(kSystemMenuTracingIcon, style.GetIconColor()));
 
     SetInkDropMode(InkDropHostView::InkDropMode::ON);
@@ skipping 53 matching lines @@
   default_ = NULL;
 }
 
 void TrayTracing::DestroyDetailedView() {}
 
 void TrayTracing::OnTracingModeChanged(bool value) {
   SetTrayIconVisible(value);
 }
 
 }  // namespace ash