bluetooth: Implement RSSI indicator on android

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 1245 matching lines @@
       <message name="IDS_BLUETOOTH_NEED_LOCATION_SERVICES_ON" desc="The message to show when scanning cannot start because Android location services are off, but they must be turned on for Android to return any Bluetooth devices from a scan.">
         Chrome needs location access to scan for devices. Location access is <ph name="BEGIN_LINK">&lt;services_link&gt;</ph>turned off for this device<ph name="END_LINK">&lt;/services_link&gt;</ph>.
       </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_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
       </message>
@@ skipping 1333 matching lines @@
 
       <message name="IDS_INSTANT_APPS_INFO_BAR_LABEL" desc="The title of the infobar that asks the user if they want to use an Instant App. It's the name of the app followed by the word 'Instant', e.g. ExampleApp - Instant.">
         <ph name="APP_NAME">%1$s<ex>ExampleApp</ex></ph> - <ph name="STYLE_BEGIN">&lt;style&gt;</ph>Instant<ph name="STYLE_END">&lt;/style&gt;</ph>
       </message>
       <message name="IDS_INSTANT_APPS_OPEN_IN_APP" desc="Button label for the user action that will open an Instant App. [CHAR LIMIT=20]">
         Open in app
       </message>
     </messages>
   </release>
 </grit>