chromeos: Fix case of "Get info" string in Files app.

chrome/app/chromeos_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- ChromeOS-specific strings (included from generated_resources.grd).
      Everything in this file is wrapped in <if expr="chromeos">. -->
 <grit-part>
   <message name="IDS_EMPTY_STRING" desc="Empty string, exist only to make code generic. No translation required.">
   </message>
   <!-- Idle logout dialog for retail mode -->
   <message name="IDS_IDLE_LOGOUT_TITLE" desc="Dialog title for the idle logout dialog. Used in retail mode only.">
     Are you still there?
   </message>
@@ skipping 433 matching lines @@
   </message>
   <message name="IDS_FILE_BROWSER_FILE_ALREADY_EXISTS" desc="Error message displayed when user tries to create a file with an existing name.">
     The file named "$1" already exists. Please choose a different name.
   </message>
   <message name="IDS_FILE_BROWSER_DIRECTORY_ALREADY_EXISTS" desc="Error message displayed when user tries to create a directory with an existing name.">
     The folder named "$1" already exists. Please choose a different name.
   </message>
   <message name="IDS_FILE_BROWSER_ERROR_RENAMING" desc="Error message.">
     Unable to rename "<ph name="FILE_NAME">$1<ex>document.pdf</ex></ph>". <ph name="ERROR_MESSAGE">$2<ex>An error occurred (code: ABORT)</ex></ph>
   </message>
-  <message name="IDS_FILE_BROWSER_GET_INFO_BUTTON_LABEL" desc="Label for a context menu item which shows file's metadata.">
-    Get Info
+  <message name="IDS_FILE_BROWSER_GET_INFO_BUTTON_LABEL" desc="Context menu item that shows the currently-selected file's metadata.">
+    Get info
   </message>
-  <message name="IDS_FILE_BROWSER_RENAME_BUTTON_LABEL" desc="Button Label.">
+  <message name="IDS_FILE_BROWSER_RENAME_BUTTON_LABEL" desc="Context menu item that renames the currently-selected file.">
     Rename
   </message>
-  <message name="IDS_FILE_BROWSER_DELETE_BUTTON_LABEL" desc="Button Label.">
+  <message name="IDS_FILE_BROWSER_DELETE_BUTTON_LABEL" desc="Context menu item that deletes the currently-selected file(s).">
     Delete
   </message>
-  <message name="IDS_FILE_BROWSER_PASTE_BUTTON_LABEL" desc="Button Label.">
+  <message name="IDS_FILE_BROWSER_PASTE_BUTTON_LABEL" desc="Context menu item that pastes the file(s) in the clipboard.">
     Paste
   </message>
   <message name="IDS_FILE_BROWSER_REFRESH_BUTTON_LABEL" desc="Label for a button for refreshing the current directory.">
     Refresh
   </message>
   <message name="IDS_FILE_BROWSER_PASTE_INTO_FOLDER_BUTTON_LABEL" desc="Menu item label, pasting files into the selected folder.">
     Paste into folder
   </message>
-  <message name="IDS_FILE_BROWSER_COPY_BUTTON_LABEL" desc="Button Label.">
+  <message name="IDS_FILE_BROWSER_COPY_BUTTON_LABEL" desc="Context menu item that copies the currently-selected file(s) to the clipboard.">
     Copy
   </message>
-  <message name="IDS_FILE_BROWSER_CUT_BUTTON_LABEL" desc="Button Label.">
+  <message name="IDS_FILE_BROWSER_CUT_BUTTON_LABEL" desc="Context menu item that cuts the currently-selected file(s) to the clipboard.">
     Cut
   </message>
   <message name="IDS_FILE_BROWSER_MORE_ACTIONS_BUTTON_LABEL" desc="Menu item label, showing dialog to choose extension to open selected files or directories.">
     More actions...
   </message>
   <message name="IDS_FILE_BROWSER_OPEN_WITH_VERB_BUTTON_LABEL" desc="Verb that describe the action of opening one or more files or directories with the given extension.">
     Open with <ph name="EXTENSION_NAME">$1<ex>Gallery</ex></ph>
   </message>
   <message name="IDS_FILE_BROWSER_ADD_TO_VERB_BUTTON_LABEL" desc="Verb that describes the uploading or addition of one or multiple files or directories to the given extension.">
     Add to <ph name="EXTENSION_NAME">$1<ex>Evernote</ex></ph>
@@ skipping 5886 matching lines @@
   <message name="IDS_FLAGS_ENABLE_EHV_INPUT_NAME" desc="Name of the about: flag for enabling emoji, handwriting and voice input on opt-in IME menu.">
     Emoji, handwriting and voice input on opt-in IME menu
     </message>
   <message name="IDS_FLAGS_ENABLE_EHV_INPUT_DESCRIPTION" desc="Description of the about: flag enabling emoji, handwriting and voice input on opt-in IME menu.">
     Enable access to emoji, handwriting and voice input form opt-in IME menu.
   </message>
   <message name="IDS_HATS_DONE_BUTTON_LABEL" desc="Label used for the done button at the end of survey">
     Done
   </message>
 </grit-part>