First try at a user management screen for the desktop

chrome/browser/browser_resources.grd

Index: chrome/browser/browser_resources.grd
diff --git a/chrome/browser/browser_resources.grd b/chrome/browser/browser_resources.grd
index 125e4679a239e6382b475a6a61dd964ced5750f7..13020c7be22864703624a3c88217dd5784a3254c 100644
--- a/chrome/browser/browser_resources.grd
+++ b/chrome/browser/browser_resources.grd
@@ -356,11 +356,14 @@
         <include name="IDR_SET_AS_DEFAULT_BROWSER_JS" file="resources\set_as_default_browser.js" flattenhtml="true" type="BINDATA" />
         <include name="IDR_SET_AS_DEFAULT_BROWSER_HTML" file="resources\set_as_default_browser.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
       </if>
+      <if expr="not is_android and not pp_ifdef('ios') and not pp_ifdef('chromeos')">
+        <include name="IDR_USER_CHOOSER_JS" file="resources\user_chooser\user_chooser.js" flattenhtml="true" type="BINDATA" />
+        <include name="IDR_USER_CHOOSER_HTML" file="resources\user_chooser\user_chooser.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
+      </if>
       <include name="IDR_MANAGED_MODE_BLOCK_INTERSTITIAL_HTML" file="resources\managed_mode_block_interstitial.html" flattenhtml="true" type="BINDATA" />
       <include name="IDR_PROFILE_SIGNIN_CONFIRMATION_HTML" file="resources\profile_signin_confirmation.html" type="BINDATA" />
       <include name="IDR_PROFILE_SIGNIN_CONFIRMATION_JS" file="resources\profile_signin_confirmation.js" type="BINDATA" />
       <include name="IDR_PROFILE_SIGNIN_CONFIRMATION_CSS" file="resources\profile_signin_confirmation.css" type="BINDATA" />
-
       <include name="IDR_RECENTLY_CLOSED_WINDOW" file="resources\ntp4\images\closed_window.png" type="BINDATA" />
       <if expr="not is_android">
         <include name="IDR_IDENTITY_INTERNALS_HTML" file="resources\identity_internals.html" type="BINDATA" />