Add deprecation warnings for permission API usage from iframes

third_party/WebKit/Source/core/frame/Deprecation.h

Index: third_party/WebKit/Source/core/frame/Deprecation.h
diff --git a/third_party/WebKit/Source/core/frame/Deprecation.h b/third_party/WebKit/Source/core/frame/Deprecation.h
index 99fe14d9ab2828680237d4c79992eed6aad3463f..361c8da8ccedb0278c607ef62adc7f5364861fa3 100644
--- a/third_party/WebKit/Source/core/frame/Deprecation.h
+++ b/third_party/WebKit/Source/core/frame/Deprecation.h
@@ -14,6 +14,7 @@
 namespace blink {
 
 class LocalFrame;
+enum class WebFeaturePolicyFeature;
 
 class CORE_EXPORT Deprecation {
   DISALLOW_NEW();
@@ -47,6 +48,9 @@ class CORE_EXPORT Deprecation {
   // have script access into the top level document.
   static void CountDeprecationCrossOriginIframe(const LocalFrame*, WebFeature);
   static void CountDeprecationCrossOriginIframe(const Document&, WebFeature);
+
+  static void CountDeprecationFeaturePolicy(const Document&,
+                                            WebFeaturePolicyFeature);
   static String DeprecationMessage(WebFeature);
 
   // Note: this is only public for tests.