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

Source/modules/canvas2d/HitRegion.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "modules/canvas2d/HitRegion.h"
 
 #include "core/dom/AXObjectCache.h"
 #include "core/layout/LayoutBoxModelObject.h"
 
 namespace blink {
 
 HitRegion::HitRegion(const Path& path, const HitRegionOptions& options)
     : m_id(options.id())
     , m_control(options.control())
     , m_path(path)
 {
     if (options.fillRule() != "evenodd")
         m_fillRule = RULE_NONZERO;
     else
         m_fillRule = RULE_EVENODD;
 }
 
-void HitRegion::updateAccessibility(Element* canvas)
-{
-    if (!m_control || !canvas || !canvas->layoutObject() || !m_control->isDescendantOf(canvas))
-        return;
-
-    AXObjectCache* axObjectCache = m_control->document().existingAXObjectCache();
-    if (!axObjectCache)
-        return;
-
-    FloatRect boundingRect = m_path.boundingRect();
-
-    // Offset by the canvas rect, taking border and padding into account.
-    LayoutBoxModelObject* rbmo = canvas->layoutBoxModelObject();
-    IntRect canvasRect = canvas->layoutObject()->absoluteBoundingBoxRect();
-    canvasRect.move(rbmo->borderLeft() + rbmo->paddingLeft(),
-        rbmo->borderTop() + rbmo->paddingTop());
-    LayoutRect elementRect = enclosingLayoutRect(boundingRect);
-    elementRect.moveBy(canvasRect.location());
-
-    axObjectCache->setCanvasObjectBounds(m_control.get(), elementRect);
-}
-
 bool HitRegion::contains(const LayoutPoint& point) const
 {
     return m_path.contains(FloatPoint(point), m_fillRule);
 }
 
 bool HitRegion::contains(const FloatPoint& point) const
 {
     return m_path.contains(point, m_fillRule);
 }
 
@@ skipping 107 matching lines @@
 DEFINE_TRACE(HitRegionManager)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_hitRegionList);
     visitor->trace(m_hitRegionIdMap);
     visitor->trace(m_hitRegionControlMap);
 #endif
 }
 
 } // namespace blink