Cleanup: Start using toFoo methods as part of newly adopted coding guideline.

Source/core/dom/Position.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2009 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
@@ skipping 656 matching lines @@
 
                 // The text continues on the next line only if the last text box is not on this line and
                 // none of the boxes on this line have a larger start offset.
 
                 bool continuesOnNextLine = true;
                 InlineBox* otherBox = box;
                 while (continuesOnNextLine) {
                     otherBox = otherBox->nextLeafChild();
                     if (!otherBox)
                         break;
-                    if (otherBox == lastTextBox || (otherBox->renderer() == textRenderer && static_cast<InlineTextBox*>(otherBox)->start() > textOffset))
+                    if (otherBox == lastTextBox || (otherBox->renderer() == textRenderer && toInlineTextBox(otherBox)->start() > textOffset))
                         continuesOnNextLine = false;
                 }
 
                 otherBox = box;
                 while (continuesOnNextLine) {
                     otherBox = otherBox->prevLeafChild();
                     if (!otherBox)
                         break;
-                    if (otherBox == lastTextBox || (otherBox->renderer() == textRenderer && static_cast<InlineTextBox*>(otherBox)->start() > textOffset))
+                    if (otherBox == lastTextBox || (otherBox->renderer() == textRenderer && toInlineTextBox(otherBox)->start() > textOffset))
                         continuesOnNextLine = false;
                 }
 
                 if (continuesOnNextLine)
                     return currentPos;
             }
         }
     }
 
     return lastVisible;
@@ skipping 94 matching lines @@
 
                 // The text continues on the next line only if the last text box is not on this line and
                 // none of the boxes on this line have a larger start offset.
 
                 bool continuesOnNextLine = true;
                 InlineBox* otherBox = box;
                 while (continuesOnNextLine) {
                     otherBox = otherBox->nextLeafChild();
                     if (!otherBox)
                         break;
-                    if (otherBox == lastTextBox || (otherBox->renderer() == textRenderer && static_cast<InlineTextBox*>(otherBox)->start() >= textOffset))
+                    if (otherBox == lastTextBox || (otherBox->renderer() == textRenderer && toInlineTextBox(otherBox)->start() >= textOffset))
                         continuesOnNextLine = false;
                 }
 
                 otherBox = box;
                 while (continuesOnNextLine) {
                     otherBox = otherBox->prevLeafChild();
                     if (!otherBox)
                         break;
-                    if (otherBox == lastTextBox || (otherBox->renderer() == textRenderer && static_cast<InlineTextBox*>(otherBox)->start() >= textOffset))
+                    if (otherBox == lastTextBox || (otherBox->renderer() == textRenderer && toInlineTextBox(otherBox)->start() >= textOffset))
                         continuesOnNextLine = false;
                 }
 
                 if (continuesOnNextLine)
                     return currentPos;
             }
         }
     }
 
     return lastVisible;
@@ skipping 563 matching lines @@
     pos.showTreeForThis();
 }
 
 void showTree(const WebCore::Position* pos)
 {
     if (pos)
         pos->showTreeForThis();
 }
 
 #endif