Migrate WTF::Vector::append() to ::push_back() in WTF::HexNumber

third_party/WebKit/Source/core/layout/LayoutTreeAsText.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 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 127 matching lines @@
       result.append('"');
     } else if (c == '\n' || c == noBreakSpaceCharacter) {
       result.append(' ');
     } else {
       if (c >= 0x20 && c < 0x7F) {
         result.append(c);
       } else {
         result.append('\\');
         result.append('x');
         result.append('{');
-        appendUnsignedAsHex(c, result);
+        HexNumber::appendUnsignedAsHex(c, result);
         result.append('}');
       }
     }
   }
   result.append('"');
   return result.toString();
 }
 
 TextStream& operator<<(TextStream& ts, const Color& c) {
   return ts << c.nameForLayoutTreeAsText();
@@ skipping 722 matching lines @@
   element->document().updateStyleAndLayout();
 
   LayoutObject* layoutObject = element->layoutObject();
   if (!layoutObject || !layoutObject->isListItem())
     return String();
 
   return toLayoutListItem(layoutObject)->markerText();
 }
 
 }  // namespace blink