Add deprecation warnings for permission API usage from iframes

third_party/WebKit/public/platform/web_feature.mojom

 // Copyright 2017 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.
 
 module blink.mojom;
 
 // ============ Definition for WebFeature used for UseCounter ===============
 //
 // Do not change assigned numbers of existing items: add new features
 // to the end of the list.
@@ skipping 1572 matching lines @@
   kCSSSelectorWebkitMediaControlsTimeline = 2045,
   kCSSSelectorWebkitMediaControlsTimelineContainer = 2046,
   kCSSSelectorWebkitMediaControlsMuteButton = 2047,
   kCSSSelectorWebkitMediaControlsVolumeSlider = 2048,
   kCSSSelectorWebkitMediaControlsFullscreenButton = 2049,
   kCSSSelectorWebkitMediaControlsToggleClosedCaptionsButton = 2050,
   kLinearAccelerationSensorConstructor = 2051,
   kReportUriMultipleEndpoints = 2052,
   kReportUriSingleEndpoint = 2053,
   kV8ConstructorNonUndefinedPrimitiveReturn = 2054,
+  kEncryptedMediaDisallowedByFeaturePolicyInCrossOriginIframe = 2055,
+  kGeolocationDisallowedByFeaturePolicyInCrossOriginIframe = 2056,
+  kGetUserMediaMicDisallowedByFeaturePolicyInCrossOriginIframe = 2057,
+  kGetUserMediaCameraDisallowedByFeaturePolicyInCrossOriginIframe = 2058,
+  kRequestMIDIAccessDisallowedByFeaturePolicyInCrossOriginIframe = 2059,
 
   // Add new features immediately above this line. Don't change assigned
   // numbers of any item, and don't reuse removed slots.
   // Also, run update_use_counter_feature_enum.py in
   // chromium/src/tools/metrics/histograms/ to update the UMA mapping.
   kNumberOfFeatures,  // This enum value must be last.
 };