Attribute Stuff to Frames with FrameBlamer

third_party/WebKit/Source/core/frame/LocalFrame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 809 matching lines @@
     : m_frame(&frame)
 {
     m_frame->disableNavigation();
 }
 
 FrameNavigationDisabler::~FrameNavigationDisabler()
 {
     m_frame->enableNavigation();
 }
 
+ScopedFrameBlamer::ScopedFrameBlamer(LocalFrame* frame)
+    : m_frameBlameContext(frame ? frame->client()->frameBlameContext() : nullptr)
+{
+    if (m_frameBlameContext) {
+        DCHECK(isMainThread());
+        m_frameBlameContext->Enter();
+    }
+}
+
+ScopedFrameBlamer::~ScopedFrameBlamer()
+{
+    if (m_frameBlameContext)
+        m_frameBlameContext->Leave();
+}
+
 } // namespace blink