Refactoring: Add toWebFrameImpl() interface.

Source/web/WebFrameImpl.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 618 matching lines @@
 
 WebFrame* WebFrameImpl::opener() const
 {
     if (!frame())
         return 0;
     return fromFrame(frame()->loader()->opener());
 }
 
 void WebFrameImpl::setOpener(const WebFrame* webFrame)
 {
-    frame()->loader()->setOpener(webFrame ? static_cast<const WebFrameImpl*>(webFrame)->frame() : 0);
+    frame()->loader()->setOpener(webFrame ? toWebFrameImpl(webFrame)->frame() : 0);
 }
 
 WebFrame* WebFrameImpl::parent() const
 {
     if (!frame())
         return 0;
     return fromFrame(frame()->tree()->parent());
 }
 
 WebFrame* WebFrameImpl::top() const
@@ skipping 1228 matching lines @@
         for (Vector<FindMatch>::const_iterator it = m_findMatchesCache.begin(); it != m_findMatchesCache.end(); ++it)
             if (!it->m_rect.isEmpty())
                 filteredMatches.append(*it);
 
         m_findMatchesCache.swap(filteredMatches);
     }
 
     // Invalidate the rects in child frames. Will be updated later during traversal.
     if (!m_findMatchRectsAreValid)
         for (WebFrame* child = firstChild(); child; child = child->nextSibling())
-            static_cast<WebFrameImpl*>(child)->m_findMatchRectsAreValid = false;
+            toWebFrameImpl(child)->m_findMatchRectsAreValid = false;
 
     m_findMatchRectsAreValid = true;
 }
 
 WebFloatRect WebFrameImpl::activeFindMatchRect()
 {
     ASSERT(!parent());
 
     if (!isActiveMatchFrameValid())
         return WebFloatRect();
 
     return WebFloatRect(findInPageRectFromRange(m_currentActiveMatchFrame->m_activeMatch.get()));
 }
 
 void WebFrameImpl::findMatchRects(WebVector<WebFloatRect>& outputRects)
 {
     ASSERT(!parent());
 
     Vector<WebFloatRect> matchRects;
-    for (WebFrameImpl* frame = this; frame; frame = static_cast<WebFrameImpl*>(frame->traverseNext(false)))
+    for (WebFrameImpl* frame = this; frame; frame = toWebFrameImpl(frame->traverseNext(false)))
         frame->appendFindMatchRects(matchRects);
 
     outputRects = matchRects;
 }
 
 void WebFrameImpl::appendFindMatchRects(Vector<WebFloatRect>& frameRects)
 {
     updateFindMatchRects();
     frameRects.reserveCapacity(frameRects.size() + m_findMatchesCache.size());
     for (Vector<FindMatch>::const_iterator it = m_findMatchesCache.begin(); it != m_findMatchesCache.end(); ++it) {
         ASSERT(!it->m_rect.isEmpty());
         frameRects.append(it->m_rect);
     }
 }
 
 int WebFrameImpl::selectNearestFindMatch(const WebFloatPoint& point, WebRect* selectionRect)
 {
     ASSERT(!parent());
 
     WebFrameImpl* bestFrame = 0;
     int indexInBestFrame = -1;
     float distanceInBestFrame = FLT_MAX;
 
-    for (WebFrameImpl* frame = this; frame; frame = static_cast<WebFrameImpl*>(frame->traverseNext(false))) {
+    for (WebFrameImpl* frame = this; frame; frame = toWebFrameImpl(frame->traverseNext(false))) {
         float distanceInFrame;
         int indexInFrame = frame->nearestFindMatch(point, distanceInFrame);
         if (distanceInFrame < distanceInBestFrame) {
             bestFrame = frame;
             indexInBestFrame = indexInFrame;
             distanceInBestFrame = distanceInFrame;
         }
     }
 
     if (indexInBestFrame != -1)
@@ skipping 426 matching lines @@
         return;
     frame()->document()->markers()->setMarkersActive(range, active);
 }
 
 int WebFrameImpl::ordinalOfFirstMatchForFrame(WebFrameImpl* frame) const
 {
     int ordinal = 0;
     WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl();
     // Iterate from the main frame up to (but not including) |frame| and
     // add up the number of matches found so far.
-    for (WebFrameImpl* it = mainFrameImpl; it != frame; it = static_cast<WebFrameImpl*>(it->traverseNext(true))) {
+    for (WebFrameImpl* it = mainFrameImpl; it != frame; it = toWebFrameImpl(it->traverseNext(true))) {
         if (it->m_lastMatchCount > 0)
             ordinal += it->m_lastMatchCount;
     }
     return ordinal;
 }
 
 bool WebFrameImpl::shouldScopeMatches(const String& searchText)
 {
     // Don't scope if we can't find a frame or a view.
     // The user may have closed the tab/application, so abort.
@@ skipping 93 matching lines @@
 
         // There is a possibility that the frame being detached was the only
         // pending one. We need to make sure final replies can be sent.
         flushCurrentScopingEffort(m_findRequestIdentifier);
 
         cancelPendingScopingEffort();
     }
 }
 
 } // namespace WebKit