Measure usage of image/media/plugin/text documents

third_party/WebKit/Source/core/html/TextDocument.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 15 matching lines @@
 
 #include "core/html/parser/TextDocumentParser.h"
 
 namespace blink {
 
 TextDocument::TextDocument(const DocumentInit& initializer)
     : HTMLDocument(initializer)
 {
     setCompatibilityMode(QuirksMode);
     lockCompatibilityMode();
+    UseCounter::count(*this, UseCounter::TextDocument);
+    if (ownerElement())
+        UseCounter::count(*this, UseCounter::TextDocumentInFrame);
 }
 
 DocumentParser* TextDocument::createParser()
 {
     return TextDocumentParser::create(*this, getParserSynchronizationPolicy());
 }
 
 } // namespace blink