bluetooth: Add RSSI icon for bluetooth choosers.

chrome/android/java/strings/android_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- android_chrome_strings.grd contains strings for Chrome for Android.
 
 FAQ:
   - How do I add, change, or remove a string?
       Just update this file.
   - Translations will happen automatically??
       Yes, indeed. Just add your string before the branch point and
       make the description good.
@@ skipping 1399 matching lines @@
       </message>
       <message name="IDS_BLUETOOTH_NEED_LOCATION_PERMISSION_AND_SERVICES_ON" desc="The message to show when scanning cannot start because Chrome doesn't have the Location permission and the device's location services are turned off, and both must be enabled in order for Android to return any Bluetooth devices from a scan.">
         Chrome needs location access to scan for devices. <ph name="BEGIN_LINK1">&lt;permission_link&gt;</ph>Update permissions<ph name="END_LINK1">&lt;/permission_link&gt;</ph>. Location access is also <ph name="BEGIN_LINK2">&lt;services_link&gt;</ph>turned off for this device<ph name="END_LINK2">&lt;/services_link&gt;</ph>.
       </message>
       <message name="IDS_BLUETOOTH_NEED_LOCATION_PERMISSION_HELP" desc="The status message to get more information about why Chrome needs the Location permission in order to scan for Bluetooth devices.">
         <ph name="BEGIN_LINK">&lt;link&gt;</ph>Get help<ph name="END_LINK">&lt;/link&gt;</ph>
       </message>
       <message name="IDS_BLUETOOTH_DEVICE_CONNECTED" desc="Content description for the connected icon next to connected Bluetooth devices.">
         Connected Device
       </message>
+      <message name="IDS_SIGNAL_STRENGTH_LEVEL_N_BARS" desc="Text to be shown next to devices indicating their received signal strength. [ICU Syntax]">
+        {N_BARS, plural,
+          =1 {Signal Strength Level: # bar}
+          other {Signal Strength Level: # bars}}
+      </message>
 
       <!-- Hint of sync error solution strings -->
       <message name="IDS_SYNC_ERROR_CARD_TITLE" desc="Title of the Sync Error Card. [CHAR-LIMIT=32]">
         Sync isn't working
       </message>
       <message name="IDS_HINT_ANDROID_SYNC_DISABLED" desc="Hint message to resolve Android system sync is disabled error.">
         Open Android settings and re-enable Android system sync to start Chrome sync
       </message>
       <message name="IDS_HINT_SYNC_AUTH_ERROR" desc="Hint message to resolve sync auth error.">
         Sign in again to start sync
@@ skipping 1507 matching lines @@
         Remove and recreate this shortcut
       </message>
 
       <!-- Chrome Home -->
       <message name="IDS_BOTTOM_SHEET_HELP_BUBBLE_MESSAGE" desc="Text displayed in a help bubble above the bottom navigation sheet prompting users to pull the sheet up to see their bookmarks and other content.">
         Pull up to see bookmarks and more
       </message>
     </messages>
   </release>
 </grit>