Oilpan: move Range object to the oilpan heap.

Source/web/WebRange.cpp

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 34 matching lines @@
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "public/platform/WebFloatQuad.h"
 #include "public/platform/WebString.h"
 #include "wtf/PassRefPtr.h"
 
 using namespace WebCore;
 
 namespace blink {
 
-class WebRangePrivate : public Range {
-};
-
 void WebRange::reset()
 {
-    assign(0);
+    m_private.reset();
 }
 
 void WebRange::assign(const WebRange& other)
 {
-    WebRangePrivate* p = const_cast<WebRangePrivate*>(other.m_private);
-    if (p)
-        p->ref();
-    assign(p);
+    m_private = other.m_private;
 }
 
 int WebRange::startOffset() const
 {
     return m_private->startOffset();
 }
 
 int WebRange::endOffset() const
 {
     return m_private->endOffset();
@@ skipping 57 matching lines @@
     for (unsigned i = 0; i < quads.size(); ++i) {
         quads[i].setP1(frame->view()->contentsToWindow(roundedIntPoint(quads[i].p1())));
         quads[i].setP2(frame->view()->contentsToWindow(roundedIntPoint(quads[i].p2())));
         quads[i].setP3(frame->view()->contentsToWindow(roundedIntPoint(quads[i].p3())));
         quads[i].setP4(frame->view()->contentsToWindow(roundedIntPoint(quads[i].p4())));
     }
 
     return quads;
 }
 
-WebRange::WebRange(const WTF::PassRefPtr<WebCore::Range>& range)
-    : m_private(static_cast<WebRangePrivate*>(range.leakRef()))
+WebRange::WebRange(const PassRefPtrWillBeRawPtr<WebCore::Range>& range)
+    : m_private(range)
 {
 }
 
-WebRange& WebRange::operator=(const WTF::PassRefPtr<WebCore::Range>& range)
+WebRange::operator PassRefPtrWillBeRawPtr<WebCore::Range>() const
 {
-    assign(static_cast<WebRangePrivate*>(range.leakRef()));
-    return *this;
-}
-
-WebRange::operator WTF::PassRefPtr<WebCore::Range>() const
-{
-    return PassRefPtr<Range>(const_cast<WebRangePrivate*>(m_private));
-}
-
-void WebRange::assign(WebRangePrivate* p)
-{
-    // p is already ref'd for us by the caller
-    if (m_private)
-        m_private->deref();
-    m_private = p;
+    return m_private.get();
 }
 
 } // namespace blink