Adjust ChromeVox notification strings.

BUG=261451
TEST=Manual

Review URL: https://codereview.chromium.org/112633007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243237 0039d316-1c4b-4281-b951-d872f2087c98

ash/ash_strings.grd

@@ -209,7 +209,7 @@ This file contains the strings for ash.
         Status tray
       </message>
       <message name="IDS_ASH_STATUS_TRAY_SPOKEN_FEEDBACK_ENABLED_BUBBLE" desc="The message shown on a bubble when spoken feedback is enabled">
-Spoken feedback is enabled.
+ChromeVox (spoken feedback) is enabled.
 Press Ctrl+Alt+Z to disable.
       </message>
       <message name="IDS_ASH_STATUS_TRAY_SETTINGS" desc="The label used for the settings item in the status tray.">
@@ -428,7 +428,7 @@ Press Shift + Alt to switch.
       </message>
       <message name="IDS_ASH_STATUS_TRAY_ACCESSIBILITY_SPOKEN_FEEDBACK" desc="The label used in the accessibility menu of the
     system tray to toggle on/off spoken feedback feature.">
-        Spoken feedback
+        ChromeVox (Spoken feedback)
       </message>
       <message name="IDS_ASH_STATUS_TRAY_ACCESSIBILITY_HIGH_CONTRAST_MODE" desc="The label used in the accessibility menu of the system tray to toggle on/off high contrast feature.">
         High contrast mode