MD Settings: Add tooltip for Old Image in Change Picture.

chrome/app/settings_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Settings-specific strings (included from generated_resources.grd). -->
 <grit-part>
   <!-- About Page -->
   <if expr="chromeos">
     <message name="IDS_SETTINGS_ABOUT_PAGE_DETAILED_BUILD_INFO" desc="Label describing the section that shows detailed information about the current Chrome build.">
       Detailed build information
     </message>
     <message name="IDS_SETTINGS_ABOUT_PAGE_ARC_VERSION" desc="Label for ARC version">
       ARC Version
@@ skipping 2090 matching lines @@
     </message>
     <message name="IDS_SETTINGS_CHANGE_PICTURE_DIALOG_TEXT" desc="Text with description of what to do on Change picture subpage.">
       Choose a picture to display for your account on the sign-in screen.
     </message>
     <message name="IDS_SETTINGS_CHANGE_PICTURE_CHOOSE_FILE" desc="Text on a button that shows file dialog to choose a picture from file.">
       Choose a file
     </message>
     <message name="IDS_SETTINGS_CHANGE_PICTURE_TAKE_PHOTO" desc="The text on the button to take photo of the current user.">
       Take photo
     </message>
-    <message name="IDS_SETTINGS_CHANGE_PICTURE_PHOTO_FROM_CAMERA" desc="The accessible text on the icon in the user image grid for a camera photo, when a photo has been captured.">
-      Photo from internal camera
-    </message>
     <message name="IDS_SETTINGS_CHANGE_PICTURE_DISCARD_PHOTO" desc="The text on the button to discard the captured photo of the current user.">
       Discard photo
     </message>
     <message name="IDS_SETTINGS_PHOTO_CAPTURE_ACCESSIBLE_TEXT" desc="The accessible message to speak to announce that a photo was captured.">
       Photo was captured
     </message>
     <message name="IDS_SETTINGS_PHOTO_DISCARD_ACCESSIBLE_TEXT" desc="The accessible message to speak to announce that a photo was discarded.">
       Photo was discarded
     </message>
     <message name="IDS_SETTINGS_CHANGE_PICTURE_FLIP_PHOTO" desc="The text on the button to flip the camera image horizontally.">
@@ skipping 556 matching lines @@
       System
     </message>
     <message name="IDS_SETTINGS_SYSTEM_HARDWARE_ACCELERATION_LABEL" desc="Label for the checkbox that forces Chrome to render via hardware acceleration (GPU) when available.">
       Use hardware acceleration when available
     </message>
     <message name="IDS_SETTINGS_SYSTEM_PROXY_SETTINGS_BUTTON" desc="Text for the button that changes a user's network proxy settings.">
       Change proxy settings
     </message>
   </if>
 </grit-part>