chrome/browser/extensions: Change auto to not deduce raw pointers.

chrome/browser/extensions/api/tabs/tabs_api.cc

 // Copyright (c) 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 "chrome/browser/extensions/api/tabs/tabs_api.h"
 
 #include <stddef.h>
 #include <algorithm>
 #include <limits>
 #include <memory>
@@ skipping 318 matching lines @@
 bool WindowsGetLastFocusedFunction::RunSync() {
   std::unique_ptr<windows::GetLastFocused::Params> params(
       windows::GetLastFocused::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
 
   ApiParameterExtractor<windows::GetLastFocused::Params> extractor(
       params.get());
   // The WindowControllerList should contain a list of application,
   // browser and devtools windows.
   WindowController* controller = nullptr;
-  for (auto iter : WindowControllerList::GetInstance()->windows()) {
+  for (auto* iter : WindowControllerList::GetInstance()->windows()) {
     if (windows_util::CanOperateOnWindow(this, iter,
                                          extractor.type_filters())) {
       controller = iter;
       if (controller->window()->IsActive())
         break;  // Use focused window.
     }
   }
   if (!controller) {
     error_ = keys::kNoLastFocusedWindowError;
     return false;
@@ skipping 1812 matching lines @@
   ZoomModeToZoomSettings(zoom_mode, &zoom_settings);
   zoom_settings.default_zoom_factor.reset(new double(
       content::ZoomLevelToZoomFactor(zoom_controller->GetDefaultZoomLevel())));
 
   results_ = api::tabs::GetZoomSettings::Results::Create(zoom_settings);
   SendResponse(true);
   return true;
 }
 
 }  // namespace extensions