Change a label of the HTML5 multiple file chooser to "Choose One or More Files"

webkit/glue/webkit_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- This file contains definitions of resources that will be translated for
 each locale. Specifically, these are UI strings that are used by webkit that
 need to be translated for each locale.-->
 
 <!-- Some of these strings and string descriptions were taken from
 WebKit/win/WebCoreLocalizedStrings.cpp so we include the original license
 below:
 
@@ skipping 249 matching lines @@
       </message>
       <message name="IDS_FORM_INPUT_ALT" desc="alt text for &lt;input&gt; elements with no alt, title, or value">
         Submit
       </message>
       <message name="IDS_FORM_RESET_LABEL" desc="default label for Reset buttons in forms on web pages">
         Reset
       </message>
       <message name="IDS_FORM_FILE_BUTTON_LABEL" desc="title for file button used in HTML forms">
         Choose File
       </message>
+      <message name="IDS_FORM_MULTIPLE_FILES_BUTTON_LABEL" desc="title for file button used in HTML5 file chooser">

[tkent, 2011/06/30 00:31:52]

The description looks insufficient.
We should mention:
 - This message is for "multiple"
 - We should make translations shorter as possible.

+        Choose Files
+      </message>
       <message name="IDS_FORM_FILE_NO_FILE_LABEL" desc="text to display in file button used in HTML forms when no file is selected">
         No file chosen
       </message>
       <message name="IDS_FORM_FILE_NO_FILE_DRAG_LABEL" desc="text to display in file button used in HTML forms when no file is selected to indicate that files can be dragged onto the file button">
         Drag file here
       </message>
       <message name="IDS_FORM_FILE_MULTIPLE_UPLOAD" desc="text to display next to file buttons in HTML forms when 2 or more files are selected for uploading. This is not used for a case that just 1 file is selected.">
         <ph name="NUMBER_OF_FILES">$1<ex>3</ex></ph> files
       </message>
 
@@ skipping 222 matching lines @@
         Failed to load PDF document
       </message>
 
       <message name="IDS_PDF_PROGRESS_LOADING" desc="A message displayed on the progress control over PDF page during document loading.">
         Loading
       </message>
       
     </messages>
   </release>
 </grit>