Only generate suggested filenames when actually dragging an image.

third_party/WebKit/Source/platform/clipboard/ClipboardUtilitiesWin.cpp

 /*
  * Copyright (C) 2009 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Google Inc.
  *
  * 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
@@ skipping 15 matching lines @@
 
 #include "platform/clipboard/ClipboardUtilities.h"
 
 #include "wtf/text/StringBuilder.h"
 #include "wtf/text/WTFString.h"
 
 #include <shlwapi.h>
 
 namespace blink {
 
-// FAT32 and NTFS both limit filenames to a maximum of 255 characters.
-static const unsigned maxFilenameLength = 255;
-
-// Returns true if the specified character is not valid in a file name. This
-// is intended for use with removeCharacters.
-static bool isInvalidFileCharacter(UChar c) {
-  return !(PathGetCharType(c) & (GCT_LFNCHAR | GCT_SHORTCHAR));
-}
-
 void replaceNewlinesWithWindowsStyleNewlines(String& str) {
   DEFINE_STATIC_LOCAL(String, windowsNewline, ("\r\n"));
   StringBuilder result;
   for (unsigned index = 0; index < str.length(); ++index) {
     if (str[index] != '\n' || (index > 0 && str[index - 1] == '\r'))
       result.append(str[index]);
     else
       result.append(windowsNewline);
   }
   str = result.toString();
 }
 
-void validateFilename(String& name, String& extension) {
-  // Remove any invalid file system characters.
-  name = name.removeCharacters(&isInvalidFileCharacter);
-  extension = extension.removeCharacters(&isInvalidFileCharacter);
-
-  if (extension.length() >= maxFilenameLength)
-    extension = String();
-
-  // Truncate overly-long filenames, reserving one character for a dot.
-  name.truncate(maxFilenameLength - extension.length() - 1);
-}
-
 }  // namespace blink