Modify DateComponents::parseTime to reject values with >3 fractional decimal places

third_party/WebKit/Source/platform/DateComponents.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 429 matching lines @@
         unsigned digitsLength = countDigits(src, index + 1);
         if (digitsLength > 0) {
           ++index;
           bool ok;
           if (digitsLength == 1) {
             ok = toInt(src, index, 1, millisecond);
             millisecond *= 100;
           } else if (digitsLength == 2) {
             ok = toInt(src, index, 2, millisecond);
             millisecond *= 10;
-          } else {  // digitsLength >= 3
+          } else if (digitsLength == 3) {
             ok = toInt(src, index, 3, millisecond);
+          } else {  // digitsLength >= 4
+            return false;
           }
           DCHECK(ok);
           index += digitsLength;
         }
       }
     }
   }
   m_hour = hour;
   m_minute = minute;
   m_second = second;
@@ skipping 250 matching lines @@
     case Week:
       return String::format("%04d-W%02d", m_year, m_week);
     case Invalid:
       break;
   }
   ASSERT_NOT_REACHED();
   return String("(Invalid DateComponents)");
 }
 
 }  // namespace blink