Drop dependency on LayoutObject in fetch/

third_party/WebKit/Source/core/fetch/ImageResource.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
@@ skipping 12 matching lines @@
 
 #include "config.h"
 #include "core/fetch/ImageResource.h"
 
 #include "core/fetch/ImageResourceClient.h"
 #include "core/fetch/MemoryCache.h"
 #include "core/fetch/ResourceClient.h"
 #include "core/fetch/ResourceClientWalker.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/fetch/ResourceLoader.h"
-#include "core/layout/LayoutObject.h"
 #include "core/svg/graphics/SVGImage.h"
 #include "platform/Logging.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/SharedBuffer.h"
 #include "platform/TraceEvent.h"
 #include "platform/graphics/BitmapImage.h"
 #include "public/platform/Platform.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/StdLibExtras.h"
 
@@ skipping 395 matching lines @@
     }
 }
 
 void ImageResource::changedInRect(const blink::Image* image, const IntRect& rect)
 {
     if (!image || image != m_image)
         return;
     notifyObservers(&rect);
 }
 
-bool ImageResource::currentFrameKnownToBeOpaque(const LayoutObject* layoutObject)
-{
-    blink::Image* image = this->image();
-    if (image->isBitmapImage()) {
-        TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "PaintImage", "data", InspectorPaintImageEvent::data(layoutObject, *this));
-        // BitmapImage::currentFrameKnownToBeOpaque() conservatively returns false for uncached
-        // frames. To increase the change of an accurate answer, we pre-cache the current frame
-        // metadata.
-        image->imageForCurrentFrame();
-    }
-    return image->currentFrameKnownToBeOpaque();
-}
-
 bool ImageResource::isAccessAllowed(SecurityOrigin* securityOrigin)
 {
     if (response().wasFetchedViaServiceWorker())
         return response().serviceWorkerResponseType() != WebServiceWorkerResponseTypeOpaque;
     if (!image()->currentFrameHasSingleSecurityOrigin())
         return false;
     if (passesAccessControlCheck(securityOrigin))
         return true;
     return !securityOrigin->taintsCanvas(response().url());
 }
 
 bool ImageResource::loadingMultipartContent() const
 {
     return m_loader && m_loader->loadingMultipartContent();
 }
 
 } // namespace blink