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

chrome/browser/extensions/api/extension_action/browser_action_apitest.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 <stdint.h>
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "chrome/browser/extensions/api/extension_action/extension_action_api.h"
 #include "chrome/browser/extensions/browser_action_test_util.h"
@@ skipping 704 matching lines @@
 
   // Simulate a click on the browser action to open the popup.
   ASSERT_TRUE(OpenPopup(0));
 
   // Find the RenderFrameHost associated with the iframe in the popup.
   content::RenderFrameHost* frame_host = nullptr;
   extensions::ProcessManager* manager =
       extensions::ProcessManager::Get(browser()->profile());
   std::set<content::RenderFrameHost*> frame_hosts =
       manager->GetRenderFrameHostsForExtension(extension->id());
-  for (auto host : frame_hosts) {
+  for (auto* host : frame_hosts) {
     if (host->GetFrameName() == "child_frame") {
       frame_host = host;
       break;
     }
   }
 
   ASSERT_TRUE(frame_host);
   EXPECT_EQ(extension->GetResourceURL("frame.html"),
             frame_host->GetLastCommittedURL());
   EXPECT_TRUE(frame_host->GetParent());
@@ skipping 54 matching lines @@
       test_data_dir_.AppendASCII("browser_action/open_popup_on_reply")));
   EXPECT_TRUE(listener.WaitUntilSatisfied());
 
   ResultCatcher catcher;
   listener.Reply(std::string());
   EXPECT_TRUE(catcher.GetNextResult()) << message_;
 }
 
 }  // namespace
 }  // namespace extensions