Canvas2d: Remove the updateAccessibility() method in HitRegion class.

Source/modules/canvas2d/CanvasRenderingContext2D.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  * Copyright (C) 2012, 2013 Intel Corporation. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
@@ skipping 2051 matching lines @@
 
     // Note: we need to check document->focusedElement() rather than just calling
     // element->focused(), because element->focused() isn't updated until after
     // focus events fire.
     if (element->document().focusedElement() == element) {
         scrollPathIntoViewInternal(path);
         drawFocusRing(path);
     }
 
     // Update its accessible bounds whether it's focused or not.
-    updateFocusRingElementAccessibility(path, element);
+    updateElementAccessibility(path, element);
 }
 
 bool CanvasRenderingContext2D::focusRingCallIsValid(const Path& path, Element* element)
 {
     ASSERT(element);
     if (!state().isTransformInvertible())
         return false;
     if (path.isEmpty())
         return false;
     if (!element->isDescendantOf(canvas()))
@@ skipping 16 matching lines @@
     StrokeData strokeData;
     strokeData.setThickness(focusRingWidth);
 
     SkIRect dirtyRect;
     if (!computeDirtyRect(path.strokeBoundingRect(strokeData), &dirtyRect))
         return;
 
     didDraw(dirtyRect);
 }
 
-void CanvasRenderingContext2D::updateFocusRingElementAccessibility(const Path& path, Element* element)
+void CanvasRenderingContext2D::updateElementAccessibility(const Path& path, Element* element)
 {
     AXObjectCache* axObjectCache = element->document().existingAXObjectCache();
     LayoutBoxModelObject* lbmo = canvas()->layoutBoxModelObject();
     LayoutObject* renderer = canvas()->layoutObject();
     if (!axObjectCache || !lbmo || !renderer)
         return;
 
     // Get the transformed path.
     Path transformedPath = path;
     transformedPath.transform(state().transform());
@@ skipping 34 matching lines @@
     }
 
     if (!m_hitRegionManager)
         m_hitRegionManager = HitRegionManager::create();
 
     // Remove previous region (with id or control)
     m_hitRegionManager->removeHitRegionById(options.id());
     m_hitRegionManager->removeHitRegionByControl(options.control().get());
 
     RefPtrWillBeRawPtr<HitRegion> hitRegion = HitRegion::create(hitRegionPath, options);
-    hitRegion->updateAccessibility(canvas());
+    Element* element = hitRegion->control();
+    if (element && element->isDescendantOf(canvas()))
+        updateElementAccessibility(hitRegion->path(), hitRegion->control());
     m_hitRegionManager->addHitRegion(hitRegion.release());
 }
 
 void CanvasRenderingContext2D::removeHitRegion(const String& id)
 {
     if (m_hitRegionManager)
         m_hitRegionManager->removeHitRegionById(id);
 }
 
 void CanvasRenderingContext2D::clearHitRegions()
@@ skipping 79 matching lines @@
         if (imageType == CanvasRenderingContext2DState::NonOpaqueImage)
             return;
         if (alpha < 0xFF)
             return;
     }
 
     canvas()->buffer()->willOverwriteCanvas();
 }
 
 } // namespace blink