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

ash/common/system/chromeos/palette/palette_tray.cc

Index: ash/common/system/chromeos/palette/palette_tray.cc
diff --git a/ash/common/system/chromeos/palette/palette_tray.cc b/ash/common/system/chromeos/palette/palette_tray.cc
index eccef71de33a8b82072ccb4f72070538ec570b83..493202dbecb84d202f4647352b1c655eb72e300d 100644
--- a/ash/common/system/chromeos/palette/palette_tray.cc
+++ b/ash/common/system/chromeos/palette/palette_tray.cc
@@ -82,7 +82,7 @@ class TitleView : public views::View, public views::ButtonListener {
         new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, 0);
     SetLayoutManager(box_layout);
 
-    auto title_label =
+    auto* title_label =
         new views::Label(l10n_util::GetStringUTF16(IDS_ASH_STYLUS_TOOLS_TITLE));
     title_label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
     AddChildView(title_label);