Fix auto raw pointer deduction on linux

components/toolbar/toolbar_model_impl.cc

 // Copyright 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 "components/toolbar/toolbar_model_impl.h"
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
@@ skipping 55 matching lines @@
 security_state::SecurityLevel ToolbarModelImpl::GetSecurityLevel(
     bool ignore_editing) const {
   // When editing or empty, assume no security style.
   return ((input_in_progress() && !ignore_editing) || !ShouldDisplayURL())
              ? security_state::NONE
              : delegate_->GetSecurityLevel();
 }
 
 const gfx::VectorIcon& ToolbarModelImpl::GetVectorIcon() const {
 #if !defined(OS_ANDROID) && !defined(OS_IOS)
-  const auto icon_override = delegate_->GetVectorIconOverride();
+  auto* const icon_override = delegate_->GetVectorIconOverride();
   if (icon_override)
     return *icon_override;
 
   switch (GetSecurityLevel(false)) {
     case security_state::NONE:
     case security_state::HTTP_SHOW_WARNING:
       return toolbar::kHttpIcon;
     case security_state::EV_SECURE:
     case security_state::SECURE:
       return toolbar::kHttpsValidIcon;
@@ skipping 42 matching lines @@
                                            ? IDS_DANGEROUS_VERBOSE_STATE
                                            : IDS_NOT_SECURE_VERBOSE_STATE);
     default:
       return base::string16();
   }
 }
 
 bool ToolbarModelImpl::ShouldDisplayURL() const {
   return delegate_->ShouldDisplayURL();
 }