Make chrome://site-engagement non-polymer and re-enable on Android.

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 9e57c22589082882eb503eb65b692c6442f8c67e..d02e74cbb17b16992a8d3304a88cf5701fe2fb4e 100644
--- a/chrome/browser/browser_resources.grd
+++ b/chrome/browser/browser_resources.grd
@@ -322,14 +322,9 @@
       <if expr="enable_google_now">
         <include name="IDR_GOOGLE_NOW_MANIFEST" file="resources\google_now\manifest.json" type="BINDATA" />
       </if>
-      <if expr="not is_android">
-        <include name="IDR_SITE_ENGAGEMENT_HTML" file="resources\engagement\site_engagement.html" flattenhtml="true" type="BINDATA" />
-        <include name="IDR_SITE_ENGAGEMENT_JS" file="resources\engagement\site_engagement.js" flattenhtml="true" type="BINDATA" />
-        <include name="IDR_SITE_ENGAGEMENT_MOJO_JS" file="${root_gen_dir}\chrome\browser\ui\webui\engagement\site_engagement.mojom.js" use_base_dir="false" type="BINDATA"/>
-        <include name="IDR_SITE_ENGAGEMENT_ENGAGEMENT_TABLE_CSS" file="resources\engagement\engagement_table.css" type="BINDATA" />
-        <include name="IDR_SITE_ENGAGEMENT_ENGAGEMENT_TABLE_HTML" file="resources\engagement\engagement_table.html" type="BINDATA" />
-        <include name="IDR_SITE_ENGAGEMENT_ENGAGEMENT_TABLE_JS" file="resources\engagement\engagement_table.js" type="BINDATA" />
-      </if>
+      <include name="IDR_SITE_ENGAGEMENT_HTML" file="resources\engagement\site_engagement.html" flattenhtml="true" type="BINDATA" />
+      <include name="IDR_SITE_ENGAGEMENT_JS" file="resources\engagement\site_engagement.js" flattenhtml="true" type="BINDATA" />
+      <include name="IDR_SITE_ENGAGEMENT_MOJO_JS" file="${root_gen_dir}\chrome\browser\ui\webui\engagement\site_engagement.mojom.js" use_base_dir="false" type="BINDATA"/>
       <include name="IDR_SYNC_CONFIRMATION_CSS" file="resources\sync_confirmation\sync_confirmation.css" type="BINDATA" />
       <include name="IDR_SYNC_CONFIRMATION_HTML" file="resources\sync_confirmation\sync_confirmation.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
       <include name="IDR_SYNC_CONFIRMATION_JS" file="resources\sync_confirmation\sync_confirmation.js" type="BINDATA" />