Refactor ScopedCommandLineSwitch

extensions/common/features/simple_feature_unittest.cc

 // Copyright 2014 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 "extensions/common/features/simple_feature.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/stl_util.h"
 #include "base/values.h"
 #include "extensions/common/manifest.h"
+#include "extensions/common/test/scoped_command_line_switch.h"
 #include "extensions/common/value_builder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace extensions {
 
 namespace {
 
 struct IsAvailableTestData {
   std::string extension_id;
   Manifest::Type extension_type;
   Manifest::Location location;
   Feature::Platform platform;
   int manifest_version;
   Feature::AvailabilityResult expected_result;
 };
 
-class ScopedCommandLineSwitch {
- public:
-  explicit ScopedCommandLineSwitch(const std::string& arg)
-      : original_command_line_(*base::CommandLine::ForCurrentProcess()) {
-    base::CommandLine::ForCurrentProcess()->AppendSwitch(arg);
-  }
-
-  ~ScopedCommandLineSwitch() {
-    *base::CommandLine::ForCurrentProcess() = original_command_line_;
-  }
-
- private:
-  base::CommandLine original_command_line_;
-};
-
 }  // namespace
 
 class SimpleFeatureTest : public testing::Test {
  protected:
   bool LocationIsAvailable(SimpleFeature::Location feature_location,
                            Manifest::Location manifest_location) {
     SimpleFeature feature;
     feature.set_location(feature_location);
     Feature::AvailabilityResult availability_result =
         feature.IsAvailableToManifest(std::string(),
@@ skipping 686 matching lines @@
   EXPECT_FALSE(SimpleFeature::IsIdInArray("", kIdArray, arraysize(kIdArray)));
   EXPECT_FALSE(SimpleFeature::IsIdInArray(
       "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", kIdArray, arraysize(kIdArray)));
   EXPECT_TRUE(SimpleFeature::IsIdInArray(
       "bbbbccccdddddddddeeeeeeffffgghhh", kIdArray, arraysize(kIdArray)));
   EXPECT_TRUE(SimpleFeature::IsIdInArray(
       "aaaabbbbccccddddeeeeffffgggghhhh", kIdArray, arraysize(kIdArray)));
 }
 
 }  // namespace extensions