Implement the inert attribute

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

Index: third_party/WebKit/Source/core/frame/UseCounter.h
diff --git a/third_party/WebKit/Source/core/frame/UseCounter.h b/third_party/WebKit/Source/core/frame/UseCounter.h
index 9c0079b2620f77182bd533f5612b9825f3170c1c..9b8c93ff110278933dae72a1e9ec8eef32bfcd89 100644
--- a/third_party/WebKit/Source/core/frame/UseCounter.h
+++ b/third_party/WebKit/Source/core/frame/UseCounter.h
@@ -163,6 +163,8 @@ class CORE_EXPORT UseCounter {
     DOMNodeInsertedIntoDocumentEvent = 147,
     DOMCharacterDataModifiedEvent = 148,
     DocumentAllLegacyCall = 150,
+    HTMLEmbedElementLegacyCall = 152,
+    HTMLObjectElementLegacyCall = 153,

[esprehn, 2017/02/15 01:40:46]

looks like bad merge on UseCounter

[aboxhall, 2017/02/15 02:06:16]

Done.

     GetMatchedCSSRules = 155,
     PrefixedAudioDecodedByteCount = 164,
     PrefixedVideoDecodedByteCount = 165,
@@ -996,6 +998,8 @@ class CORE_EXPORT UseCounter {
     FileAPINativeLineEndings = 1320,
     PointerEventAttributeCount = 1321,
     CompositedReplication = 1322,
+    EncryptedMediaAllSelectedContentTypesHaveCodecs = 1323,
+    EncryptedMediaAllSelectedContentTypesMissingCodecs = 1324,
     V8DataTransferItem_WebkitGetAsEntry_Method = 1325,
     V8HTMLInputElement_WebkitEntries_AttributeGetter = 1326,
     Entry_Filesystem_AttributeGetter_IsolatedFileSystem = 1327,
@@ -1465,6 +1469,7 @@ class CORE_EXPORT UseCounter {
     V8HTMLVideoElement_Poster_AttributeGetter = 1815,
     V8HTMLVideoElement_Poster_AttributeSetter = 1816,
     NotificationPermissionRequestedIframe = 1817,
+    InertAttribute = 1818,
 
     // Add new features immediately above this line. Don't change assigned
     // numbers of any item, and don't reuse removed slots.