Remove implicit conversions from scoped_refptr to T* in c/b/chromeos/file*

chrome/browser/chromeos/fileapi/file_system_backend.cc

 // Copyright 2013 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/chromeos/fileapi/file_system_backend.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/chromeos/fileapi/file_access_permissions.h"
@@ skipping 148 matching lines @@
 
   std::string extension_id = url.origin().host();
   // TODO(mtomasz): Temporarily whitelist TimeScapes. Remove this in M-31.
   // See: crbug.com/271946
   if (extension_id == "mlbmkoenclnokonejhlfakkeabdlmpek" &&
       url.type() == storage::kFileSystemTypeRestrictedNativeLocal) {
     return true;
   }
 
   // Check first to make sure this extension has fileBrowserHander permissions.
-  if (!special_storage_policy_ ||
+  if (!special_storage_policy_.get() ||
       !special_storage_policy_->IsFileHandler(extension_id))
     return false;
 
   return file_access_permissions_->HasAccessPermission(extension_id,
                                                        url.virtual_path());
 }
 
 void FileSystemBackend::GrantFullAccessToExtension(
     const std::string& extension_id) {
-  if (!special_storage_policy_)
+  if (!special_storage_policy_.get())
     return;
   if (!special_storage_policy_->IsFileHandler(extension_id)) {
     NOTREACHED();
     return;
   }
   file_access_permissions_->GrantFullAccessPermission(extension_id);
 }
 
 void FileSystemBackend::GrantFileAccessToExtension(
     const std::string& extension_id, const base::FilePath& virtual_path) {
-  if (!special_storage_policy_)
+  if (!special_storage_policy_.get())
     return;
   // All we care about here is access from extensions for now.
   if (!special_storage_policy_->IsFileHandler(extension_id)) {
     NOTREACHED();
     return;
   }
 
   std::string id;
   storage::FileSystemType type;
   std::string cracked_id;
@@ skipping 209 matching lines @@
     case storage::kFileSystemTypeRestrictedNativeLocal:
       callback.Run(GURL());
       return;
     default:
       NOTREACHED();
   }
   callback.Run(GURL());
 }
 
 }  // namespace chromeos