Use toElement instead of static_cast<Element*> and static_cast<const Element*>

Source/core/editing/ReplaceSelectionCommand.cpp

Index: Source/core/editing/ReplaceSelectionCommand.cpp
diff --git a/Source/core/editing/ReplaceSelectionCommand.cpp b/Source/core/editing/ReplaceSelectionCommand.cpp
index a6f0892d9c00ff73fa619122ec2f79e59fb2ff5b..c49a0ea2b2d950962964349a486f6d02757f1113 100644
--- a/Source/core/editing/ReplaceSelectionCommand.cpp
+++ b/Source/core/editing/ReplaceSelectionCommand.cpp
@@ -98,8 +98,7 @@ private:
 static bool isInterchangeNewlineNode(const Node *node)
 {
     DEFINE_STATIC_LOCAL(String, interchangeNewlineClassString, (AppleInterchangeNewline));
-    return node && node->hasTagName(brTag) && 
-           static_cast<const Element *>(node)->getAttribute(classAttr) == interchangeNewlineClassString;
+    return node && node->hasTagName(brTag) && toElement(node)->getAttribute(classAttr) == interchangeNewlineClassString;

[yoshinori.sano, 2013/06/22 01:07:55]

Reluctantly combined them because I got the following error.
Is there a more preferable way to fix it?

** Presubmit ERRORS **
check-webkit-style failed
  Source/core/editing/ReplaceSelectionCommand.cpp:102:  Weird number of spaces
at line-start.  Are you using a 4-space indent?  [whitespace/indent] [3]
Total errors found: 1 in 7 files

[abarth-chromium, 2013/06/22 06:45:02]

That's fine.

 }
 
 static bool isInterchangeConvertedSpaceSpan(const Node *node)