Prevent scientific notation in LayoutUnit gdb prettyprinter.

Tools/gdb/webkit.py

 # Copyright (C) 2010, 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
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 153 matching lines @@
     def to_string(self):
         return WTFStringPrinter(self.val['m_string']).to_string()
 
 
 class blinkLayoutUnitPrinter:
     "Print a blink::LayoutUnit"
     def __init__(self, val):
         self.val = val
 
     def to_string(self):
-        return "%gpx" % (self.val['m_value'] / 64.0)
+        return "%.14gpx" % (self.val['m_value'] / 64.0)
 
 
 class blinkLayoutSizePrinter:
     "Print a blink::LayoutSize"
     def __init__(self, val):
         self.val = val
 
     def to_string(self):
         return 'LayoutSize(%s, %s)' % (blinkLayoutUnitPrinter(self.val['m_width']).to_string(), blinkLayoutUnitPrinter(self.val['m_height']).to_string())
 
@@ skipping 269 matching lines @@
             padding = ''
             while len(stack) > 0:
                 pair = stack.pop()
                 print(padding, pair[1], pair[0])
                 padding = padding + '  '
         else:
             print('Sorry: I don\'t know how to deal with %s yet.' % target_type)
 
 
 PrintPathToRootCommand()