Implement ComplexFeature to support permission features with multiple rules.

chrome/common/extensions/features/simple_feature_provider_unittest.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/common/extensions/features/simple_feature_provider.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 using extensions::Extension;
 using extensions::Feature;
+using extensions::SimpleFeature;
 using extensions::SimpleFeatureProvider;
 
 TEST(SimpleFeatureProvider, ManifestFeatures) {
   SimpleFeatureProvider* provider =
       SimpleFeatureProvider::GetManifestFeatures();
-  Feature* feature = provider->GetFeature("description");
+  SimpleFeature* feature = provider->GetFeature("description");
   ASSERT_TRUE(feature);
   EXPECT_EQ(5u, feature->extension_types()->size());
   EXPECT_EQ(1u, feature->extension_types()->count(Extension::TYPE_EXTENSION));
   EXPECT_EQ(1u,
       feature->extension_types()->count(Extension::TYPE_LEGACY_PACKAGED_APP));
   EXPECT_EQ(1u,
             feature->extension_types()->count(Extension::TYPE_PLATFORM_APP));
   EXPECT_EQ(1u, feature->extension_types()->count(Extension::TYPE_HOSTED_APP));
   EXPECT_EQ(1u, feature->extension_types()->count(Extension::TYPE_THEME));
 
@@ skipping 18 matching lines @@
 
   feature = provider->GetFeature("devtools_page");
   ASSERT_TRUE(feature);
   EXPECT_EQ(Feature::NOT_PRESENT, feature->IsAvailableToContext(
       extension.get(), Feature::UNSPECIFIED_CONTEXT).result());
 }
 
 TEST(SimpleFeatureProvider, PermissionFeatures) {
   SimpleFeatureProvider* provider =
       SimpleFeatureProvider::GetPermissionFeatures();
-  Feature* feature = provider->GetFeature("contextMenus");
+  SimpleFeature* feature = provider->GetFeature("contextMenus");
   ASSERT_TRUE(feature);
   EXPECT_EQ(3u, feature->extension_types()->size());
   EXPECT_EQ(1u, feature->extension_types()->count(Extension::TYPE_EXTENSION));
   EXPECT_EQ(1u,
       feature->extension_types()->count(Extension::TYPE_LEGACY_PACKAGED_APP));
   EXPECT_EQ(1u,
             feature->extension_types()->count(Extension::TYPE_PLATFORM_APP));
 
   DictionaryValue manifest;
   manifest.SetString("name", "test extension");
@@ skipping 49 matching lines @@
   EXPECT_TRUE(provider->GetFeature("feature1"));
 
   // feature2 won't validate because of the presence of "contexts".
   EXPECT_FALSE(provider->GetFeature("feature2"));
 
   // If we remove it, it works.
   feature2->Remove("contexts", NULL);
   provider.reset(new SimpleFeatureProvider(value.get(), NULL));
   EXPECT_TRUE(provider->GetFeature("feature2"));
 }