One AXObjectCache per frame

third_party/WebKit/Source/modules/accessibility/AXScrollbar.cpp

Index: third_party/WebKit/Source/modules/accessibility/AXScrollbar.cpp
diff --git a/third_party/WebKit/Source/modules/accessibility/AXScrollbar.cpp b/third_party/WebKit/Source/modules/accessibility/AXScrollbar.cpp
deleted file mode 100644
index 1c8f86f87556d7d01e7ce02f34edeb0074cdbc89..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/modules/accessibility/AXScrollbar.cpp
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Copyright (C) 2010 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
- *     documentation and/or other materials provided with the distribution.
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- *     its contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "modules/accessibility/AXScrollbar.h"
-
-#include "modules/accessibility/AXObjectCacheImpl.h"
-#include "platform/scroll/ScrollableArea.h"
-#include "platform/scroll/Scrollbar.h"
-
-namespace blink {
-
-AXScrollbar::AXScrollbar(Scrollbar* scrollbar, AXObjectCacheImpl& axObjectCache)
-    : AXMockObject(axObjectCache)
-    , m_scrollbar(scrollbar)
-{
-    ASSERT(scrollbar);
-}
-
-AXScrollbar::~AXScrollbar()
-{
-    ASSERT(!m_scrollbar);
-}
-
-void AXScrollbar::detachFromParent()
-{
-    m_scrollbar = nullptr;
-    AXMockObject::detachFromParent();
-}
-
-AXScrollbar* AXScrollbar::create(Scrollbar* scrollbar, AXObjectCacheImpl& axObjectCache)
-{
-    return new AXScrollbar(scrollbar, axObjectCache);
-}
-
-LayoutRect AXScrollbar::elementRect() const
-{
-    if (!m_scrollbar)
-        return LayoutRect();
-
-    return LayoutRect(m_scrollbar->frameRect());
-}
-
-Document* AXScrollbar::document() const
-{
-    AXObject* parent = parentObject();
-    if (!parent)
-        return 0;
-    return parent->document();
-}
-
-AccessibilityOrientation AXScrollbar::orientation() const
-{
-    if (!m_scrollbar)
-        return AccessibilityOrientationHorizontal;
-
-    if (m_scrollbar->orientation() == HorizontalScrollbar)
-        return AccessibilityOrientationHorizontal;
-    if (m_scrollbar->orientation() == VerticalScrollbar)
-        return AccessibilityOrientationVertical;
-
-    return AccessibilityOrientationVertical;
-}
-
-bool AXScrollbar::isEnabled() const
-{
-    if (!m_scrollbar)
-        return false;
-    return m_scrollbar->enabled();
-}
-
-float AXScrollbar::valueForRange() const
-{
-    if (!m_scrollbar)
-        return 0;
-
-    return m_scrollbar->currentPos() / m_scrollbar->maximum();
-}
-
-void AXScrollbar::setValue(float value)
-{
-    if (!m_scrollbar)
-        return;
-
-    if (!m_scrollbar->scrollableArea())
-        return;
-
-    float newValue = value * m_scrollbar->maximum();
-
-    // TODO(bokan): This should potentially be a UserScroll.
-    m_scrollbar->scrollableArea()->setScrollPositionSingleAxis(m_scrollbar->orientation(), newValue, ProgrammaticScroll);
-}
-
-DEFINE_TRACE(AXScrollbar)
-{
-    visitor->trace(m_scrollbar);
-    AXMockObject::trace(visitor);
-}
-
-} // namespace blink