Revert of ExtensionFunction: don't pass ownership of base::Value by raw pointer.

chrome/browser/chromeos/extensions/file_manager/private_api_misc.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/extensions/file_manager/private_api_misc.h"
 
 #include <stddef.h>
 
 #include <set>
 #include <vector>
@@ skipping 449 matching lines @@
 
 void FileManagerPrivateInternalGetMimeTypeFunction::OnGetMimeType(
     const std::string& mimeType) {
   SetResult(base::MakeUnique<base::StringValue>(mimeType));
   SendResponse(true);
 }
 
 ExtensionFunction::ResponseAction
 FileManagerPrivateIsPiexLoaderEnabledFunction::Run() {
 #if defined(OFFICIAL_BUILD)
-  return RespondNow(
-      OneArgument(base::MakeUnique<base::FundamentalValue>(true)));
+  return RespondNow(OneArgument(new base::FundamentalValue(true)));
 #else
-  return RespondNow(
-      OneArgument(base::MakeUnique<base::FundamentalValue>(false)));
+  return RespondNow(OneArgument(new base::FundamentalValue(false)));
 #endif
 }
 
 FileManagerPrivateGetProvidingExtensionsFunction::
     FileManagerPrivateGetProvidingExtensionsFunction()
     : chrome_details_(this) {
 }
 
 ExtensionFunction::ResponseAction
 FileManagerPrivateGetProvidingExtensionsFunction::Run() {
@@ skipping 203 matching lines @@
     base::File::Error result) {
   if (result != base::File::FILE_OK) {
     Respond(Error("Failed to execute the action."));
     return;
   }
 
   Respond(NoArguments());
 }
 
 }  // namespace extensions