Add deprecation warnings for permission API usage from iframes

third_party/WebKit/Source/modules/webmidi/NavigatorWebMIDI.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "modules/webmidi/NavigatorWebMIDI.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
+#include "core/frame/Deprecation.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Navigator.h"
 #include "core/frame/UseCounter.h"
 #include "modules/webmidi/MIDIAccessInitializer.h"
 #include "modules/webmidi/MIDIOptions.h"
+#include "public/platform/WebFeaturePolicyFeature.h"
 
 namespace blink {
 
 NavigatorWebMIDI::NavigatorWebMIDI(Navigator& navigator)
     : Supplement<Navigator>(navigator) {}
 
 DEFINE_TRACE(NavigatorWebMIDI) {
   Supplement<Navigator>::Trace(visitor);
 }
 
@@ skipping 27 matching lines @@
   }
 
   Document& document = *ToDocument(ExecutionContext::From(script_state));
   if (options.hasSysex() && options.sysex()) {
     UseCounter::Count(document, WebFeature::kRequestMIDIAccessWithSysExOption);
     UseCounter::CountCrossOriginIframe(
         document, WebFeature::kRequestMIDIAccessIframeWithSysExOption);
   }
   UseCounter::CountCrossOriginIframe(document,
                                      WebFeature::kRequestMIDIAccessIframe);
+  Deprecation::CountDeprecationFeaturePolicy(
+      document, WebFeaturePolicyFeature::kMidiFeature);
+
   return MIDIAccessInitializer::Start(script_state, options);
 }
 
 }  // namespace blink