[Extensions] Move Feature channel code into //extensions

extensions/common/features/simple_feature_filter.cc

Index: extensions/common/features/simple_feature_filter.cc
diff --git a/extensions/common/features/simple_feature_filter.cc b/extensions/common/features/simple_feature_filter.cc
deleted file mode 100644
index 623c49cca8ee9961b48afe7a4f378c972443f6ff..0000000000000000000000000000000000000000
--- a/extensions/common/features/simple_feature_filter.cc
+++ /dev/null
@@ -1,37 +0,0 @@
-// 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_filter.h"
-
-#include "extensions/common/features/simple_feature.h"
-
-namespace extensions {
-
-SimpleFeatureFilter::SimpleFeatureFilter(SimpleFeature* feature)
-    : feature_(feature) {}
-
-SimpleFeatureFilter::~SimpleFeatureFilter() {}
-
-std::string SimpleFeatureFilter::Parse(const base::DictionaryValue* value) {
-  return std::string();
-}
-
-Feature::Availability SimpleFeatureFilter::IsAvailableToContext(
-    const Extension* extension,
-    Feature::Context context,
-    const GURL& url,
-    Feature::Platform platform) const {
-  return Feature::Availability(Feature::IS_AVAILABLE, std::string());
-}
-
-Feature::Availability SimpleFeatureFilter::IsAvailableToManifest(
-    const std::string& extension_id,
-    Manifest::Type type,
-    Manifest::Location location,
-    int manifest_version,
-    Feature::Platform platform) const {
-  return Feature::Availability(Feature::IS_AVAILABLE, std::string());
-}
-
-}  // namespace extensions