Fix auto raw pointer deduction on linux

ui/views/examples/button_sticker_sheet.cc

 // Copyright 2016 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/examples/button_sticker_sheet.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "ui/base/material_design/material_design_controller.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/controls/button/md_text_button.h"
@@ skipping 38 matching lines @@
 
 // Add a row containing a label whose text is |label_text| and then all the
 // views in |views| to the supplied GridLayout, with padding between rows.
 void AddLabelledRowToGridLayout(GridLayout* layout,
                                 const std::string& label_text,
                                 std::vector<View*> views) {
   const float kRowDoesNotResizeVertically = 0.0;
   const int kPaddingRowHeight = 8;
   layout->StartRow(kRowDoesNotResizeVertically, kStretchyGridColumnSetId);
   layout->AddView(MakePlainLabel(label_text));
-  for (const auto& view : views)
+  for (auto* view : views)
     layout->AddView(view);
   // This gets added extraneously after the last row, but it doesn't hurt and
   // means there's no need to keep track of whether to add it or not.
   layout->AddPaddingRow(kRowDoesNotResizeVertically, kPaddingRowHeight);
 }
 
 // Constructs a pair of MdTextButtons in the specified |state| with the
 // specified |listener|, and returns them in |*primary| and |*secondary|. The
 // button in |*primary| is a call-to-action button, and the button in
 // |*secondary| is a regular button.
@@ skipping 52 matching lines @@
   secondary->OnFocus();
   AddLabelledRowToGridLayout(layout, "Focused", {primary, secondary});
 }
 
 void ButtonStickerSheet::ButtonPressed(Button* button, const ui::Event& event) {
   // Ignore button presses.
 }
 
 }  // namespace examples
 }  // namespace views