Adjust ChromeVox (spoken feedback) strings and make it possible for announcemen

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="pp_ifdef('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 303 matching lines @@
   <message name="IDS_NETWORK_SELECTION_CONTINUE_BUTTON" desc="Text shown on continue button">
     Continue
   </message>
   <message name="IDS_NETWORK_SELECTION_ERROR" desc="Error shown when connection to network failed or timed out.">
     <ph name="PRODUCT_NAME">$1<ex>Chrome OS</ex></ph> was unable to connect to <ph name="NETWORK_ID">$2<ex>Public Wifi</ex></ph>. Please select another network or try again.
   </message>
   <message name="IDS_OOBE_ACCESSIBILITY_LINK" desc="Link shown on OOBE screens that opens accessibility options menu.">
     Accessibility
   </message>
   <message name="IDS_OOBE_SPOKEN_FEEDBACK_OPTION" desc="Spoken feedback option shown on OOBE screens accessibility menu.">
-    Spoken feedback
+    ChromeVox (spoken feedback)
   </message>
   <message name="IDS_OOBE_LARGE_CURSOR_OPTION" desc="Large mouse cursor option shown on OOBE screens accessibility menu.">
     Large mouse cursor
   </message>
   <message name="IDS_OOBE_HIGH_CONTRAST_MODE_OPTION" desc="High contrast mode option shown on OOBE screens accessibility menu.">
     High contrast mode
   </message>
   <message name="IDS_OOBE_SCREEN_MAGNIFIER_OPTION" desc="Screen magnifier option shown on OOBE screens accessibility menu.">
     Screen magnifier
   </message>
@@ skipping 589 matching lines @@
   <message name="IDS_OPTIONS_SETTINGS_BLUETOOTH_FORGET_FAILED">
     Failed to disconnect and unpair from "<ph name="DEVICE_NAME">%1<ex>Nexus S</ex></ph>".
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_EXPLANATION" desc="In the settings tab, this text explains the accessibiliy features.">
     Enable accessibility features to make your device easier to use.
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_LARGE_CURSOR_DESCRIPTION" desc="In the settings tab, the text next to the checkbox for the large mouse cursor.">
     Show large mouse cursor
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_SPOKEN_FEEDBACK_DESCRIPTION" desc="In the settings tab, the text next to the checkbox for spoken feedback.">
-    Enable spoken feedback
+    Enable ChromeVox (spoken feedback)
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_HIGH_CONTRAST_DESCRIPTION" desc="In the settings tab, the text next to the checkbox for high contrast mode.">
     Use high contrast mode
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_SCREEN_MAGNIFIER_DESCRIPTION" desc="In the settings tab, the text next to the dropdown for screen magnifier.">
     Enable screen magnifier
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_SCREEN_MAGNIFIER_OFF" desc="In the settings tab, the option indication the screen magnifier is off.">
     Off
   </message>
@@ skipping 1440 matching lines @@
   <message name="IDS_OPTIONS_POINTER_TOUCHPAD_MOUSE_OVERLAY_TITLE" desc="The title for 'Pointer settings' overlay for Touchpad and Mouse.">
     Touchpad and mouse settings
   </message>
   <message name="IDS_OPTIONS_POINTER_OVERLAY_SECTION_TITLE_TOUCHPAD" desc="The title for 'Touchpad' section of the Pointer Settings overlay.">
     Touchpad
   </message>
   <message name="IDS_OPTIONS_POINTER_OVERLAY_SECTION_TITLE_MOUSE" desc="The title for 'Mouse' section of the Pointer Settings overlay.">
     Mouse
   </message>
   <message name="IDS_STATUSBAR_SPOKEN_FEEDBACK_ENABLED" desc="The tooltip for the status bar button to indicate that spoken feedback has been enabled.">
-    Spoken feedback is enabled.
+    ChromeVox (spoken feedback) is enabled. Press Ctrl+Alt+Z to disable.
   </message>
   <message name="IDS_STATUSBAR_DISABLE_SPOKEN_FEEDBACK" desc="The menu option to disable spoken feedback accessibility feature.">
-    Disable spoken feedback
+    Disable ChromeVox (spoken feedback)
   </message>
   <message name="IDS_STATUSBAR_NETWORK_DEVICE_ETHERNET" desc="The ethernet network device.">
     Ethernet
   </message>
   <message name="IDS_STATUSBAR_NETWORK_DEVICE_WIFI" desc="The wifi network device.">
     Wi-Fi
   </message>
   <message name="IDS_STATUSBAR_NETWORK_DEVICE_CELLULAR" desc="The cellular network device.">
     Mobile Data
   </message>
@@ skipping 242 matching lines @@
   </message>
   <message name="IDS_CHROMEOS_ACC_PERIOD" desc="The name of the period character.">
     Period
   </message>
   <message name="IDS_CHROMEOS_ACC_SPACE" desc="The name of a space character.">
     Space
   </message>
   <message name="IDS_CHROMEOS_ACC_TEXT_UNSELECTED" desc="A phrase to indicate to the user that text has been unselected.">
     Unselected
   </message>
-  <message name="IDS_CHROMEOS_ACC_SPOKEN_FEEDBACK_ENABLED" desc="A phrase to speak when spoken feedback is enabled.">
-    Enabling spoken feedback.
-  </message>
-  <message name="IDS_CHROMEOS_ACC_SPOKEN_FEEDBACK_DISABLED" desc="A phrase to speak when spoken feedback is disabled.">
-    Disabling spoken feedback.
-  </message>
   <message name="IDS_CHROMEOS_ACC_USERNAME_LABEL" desc="Label for the username text field.">
     Username.
   </message>
   <message name="IDS_CHROMEOS_ACC_LOGIN_SIGNING_IN" desc="Status when signing in.">
     Signing in.
   </message>
   <message name="IDS_CHROMEOS_ACC_LOGIN_SIGNIN_OFFRECORD" desc="Status when signing in incognito.">
     Entering as Guest.
   </message>
   <message name="IDS_CHROMEOS_ACC_LOGIN_SIGNIN_DEMOUSER" desc="Status when signing in the demo user.">
@@ skipping 576 matching lines @@
   <message name="IDS_KEYBOARD_OVERLAY_TOGGLE_CAPS_LOCK" desc="The text in the keyboard overlay to explain the shortcut (enable or disable caps lock).">
     Toggle caps lock
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_TOGGLE_PROJECTION_TOUCH_HUD" desc="The text in the keyboard overlay to explain the shortcut.">
     Toggle projection touch HUD
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_TOGGLE_SPEECH_INPUT" desc="The text in the keyboard overlay to explain the shortcut (start or stop speech input).">
     Toggle speech input
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_TOGGLE_SPOKEN_FEEDBACK" desc="The text in the keyboard overlay to explain the shortcut (enable or disable spoken feedback).">
-    Toggle spoken feedback
+    Toggle ChromeVox (spoken feedback)
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_UNDO" desc="The text in the keyboard overlay to explain the shortcut.">
     Undo
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_VIEW_KEYBOARD_OVERLAY" desc="The text in the keyboard overlay to explain the shortcut.">
     View keyboard overlay
   </message>
   <message name="IDS_KEYBOARD_OVERLAY_VIEW_SOURCE" desc="The text in the keyboard overlay to explain the shortcut.">
     View source
   </message>
@@ skipping 559 matching lines @@
     Google needs to uniquely identify your device to authorize the playback of HD content. <ph name="LEARN_MORE">$1<ex>Learn more</ex></ph>.
   </message>
   <message name="IDS_PLATFORM_VERIFICATION_DIALOG_ALLOW" desc="The button label to allow access of HD playback.">
     Okay, got it
   </message>
   <message name="IDS_PLATFORM_VERIFICATION_DIALOG_DENY" desc="The button label to deny access of HD playback.">
     No, disable HD
   </message>
 
 </grit-part>