Implement feature policy checks in the browser process

content/public/common/content_features.cc

 // Copyright 2015 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 "build/build_config.h"
 #include "content/public/common/content_features.h"
 
 namespace features {
 
 // All features in alphabetical order.
@@ skipping 236 matching lines @@
 // Groups all out-of-process iframes to a different process from the process of
 // the top document. This is a performance isolation mode.  Launch bug:
 // https://crbug.com/595987.
 const base::Feature kTopDocumentIsolation{"top-document-isolation",
                                           base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Enables touchpad and wheel scroll latching.
 const base::Feature kTouchpadAndWheelScrollLatching{
     "TouchpadAndWheelScrollLatching", base::FEATURE_DISABLED_BY_DEFAULT};
 
+// Use Feature Policy to gate the use of permission features like midi,
+// geolocation, camera, microphone, etc.
+const base::Feature kUseFeaturePolicyForPermissions{
+    "UseFeaturePolicyForPermissions", base::FEATURE_DISABLED_BY_DEFAULT};
+
 // Controls whether vibrate requires user gesture.
 const base::Feature kVibrateRequiresUserGesture{
     "VibrateRequiresUserGesture", base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enables VR UI.
 const base::Feature kVrShell {
   "VrShell",
 #if defined(OS_ANDROID)
       base::FEATURE_ENABLED_BY_DEFAULT
 #else
@@ skipping 88 matching lines @@
 #endif
 
 #if defined(OS_WIN)
 // Emergency "off switch" for new Windows sandbox security mitigation,
 // sandbox::MITIGATION_EXTENSION_POINT_DISABLE.
 const base::Feature kWinSboxDisableExtensionPoints{
     "WinSboxDisableExtensionPoint", base::FEATURE_ENABLED_BY_DEFAULT};
 #endif
 
 }  // namespace features