Update chrome://browser-switch strings

Also fixes an issue where the Chromium string and the Google Chrome
string didn't match.

Change-Id: I92726d0e4bfbaf4872ea5d0a4389b0225ae7dba9
Reviewed-on: https://chromium-review.googlesource.com/c/1484078
Commit-Queue: Nicolas Ouellet-Payeur <nicolaso@chromium.org>
Reviewed-by: Julian Pastarmov <pastarmovj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#636492}

chrome/app/chromium_strings.grd

@@ -692,7 +692,7 @@ Signing in anyway will merge Chromium information like bookmarks, history, and o
       <!-- about:browser-switch strings -->
       <if expr="is_win or is_macosx or (is_linux and not is_chromeos)">
         <message name="IDS_ABOUT_BROWSER_SWITCH_DESCRIPTION" desc="Description shown while waiting for an alternative browser to open">
-          Your system administrator has configured Chromium to open an alternate browser.
+          Your system administrator has configured Chromium to open an alternative browser to access <ph name="TARGET_URL_HOSTNAME">$1<ex>example.com</ex></ph>.
         </message>
       </if>
 

chrome/app/google_chrome_strings.grd

@@ -703,7 +703,7 @@ Signing in anyway will merge Chrome information like bookmarks, history, and oth
       <!-- about:browser-switch strings -->
       <if expr="is_win or is_macosx or (is_linux and not is_chromeos)">
         <message name="IDS_ABOUT_BROWSER_SWITCH_DESCRIPTION" desc="Description shown while waiting for an alternative browser to open">
-          Your system administrator has configured Google Chrome to open an alternate browser to access <ph name="URL">$1<ex>http://example.com/</ex></ph>.
+          Your system administrator has configured Google Chrome to open an alternative browser to access <ph name="TARGET_URL_HOSTNAME">$1<ex>example.com</ex></ph>.
         </message>
       </if>
 

chrome/browser/resources/browser_switcher/app.js

@@ -123,7 +123,7 @@ Polymer({
     if (this.error_) {
       return this.i18n(this.error_, getUrlHostname(this.url_));
     }
-    return this.i18n('description');
+    return this.i18n('description', getUrlHostname(this.url_));
   },
 });