[Fetch API] Add use counter for Headers.prototype.getAll()

third_party/WebKit/Source/modules/fetch/Headers.idl

Index: third_party/WebKit/Source/modules/fetch/Headers.idl
diff --git a/third_party/WebKit/Source/modules/fetch/Headers.idl b/third_party/WebKit/Source/modules/fetch/Headers.idl
index 1e9c0649d71a4fd0b3984a0bc0a643ac2e176b3c..6b2b91af438cd0ace5fb54bc2fdcf9cc2635a345 100644
--- a/third_party/WebKit/Source/modules/fetch/Headers.idl
+++ b/third_party/WebKit/Source/modules/fetch/Headers.idl
@@ -16,7 +16,7 @@ typedef Dictionary OpenEndedDictionary;
     [RaisesException] void append(ByteString name, ByteString value);
     [ImplementedAs=remove, RaisesException] void delete(ByteString key);
     [RaisesException] ByteString? get(ByteString key);
-    [RaisesException] sequence<ByteString> getAll(ByteString name);
+    [RaisesException, Measure] sequence<ByteString> getAll(ByteString name);
     [RaisesException] boolean has(ByteString key);
     [RaisesException] void set(ByteString key, ByteString value);
     iterable<ByteString, ByteString>;