chrome://snippets-internals page for debugging NTP snippets.

chrome/browser/browser_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <grit latest_public_release="0" current_release="1">
   <outputs>
     <output filename="grit/browser_resources.h" type="rc_header">
       <emit emit_type='prepend'></emit>
     </output>
     <output filename="browser_resources.pak" type="data_package" />
   </outputs>
   <release seq="1">
     <structures>
@@ skipping 147 matching lines @@
         <include name="IDR_MD_EXTENSIONS_TOOLBAR_HTML" file="resources\md_extensions\toolbar.html" type="BINDATA" />
         <include name="IDR_MD_EXTENSIONS_TOOLBAR_JS" file="resources\md_extensions\toolbar.js" type="BINDATA" />
         <include name="IDR_MD_EXTENSIONS_STRINGS_HTML" file="resources\md_extensions\strings.html" type="BINDATA" />
       </if>
       <include name="IDR_FEEDBACK_MANIFEST" file="resources\feedback\manifest.json" type="BINDATA" />
       <if expr="is_android">
         <include name="IDR_POPULAR_SITES_INTERNALS_HTML" file="resources\popular_sites_internals.html" allowexternalscript="true" type="BINDATA" />
         <include name="IDR_POPULAR_SITES_INTERNALS_CSS" file="resources\popular_sites_internals.css" type="BINDATA" />
         <include name="IDR_POPULAR_SITES_INTERNALS_JS" file="resources\popular_sites_internals.js" type="BINDATA" />
       </if>
+      <if expr="is_android">

[Marc Treib, 2016/04/13 08:45:51]

Hm, actually almost all of this page should work on desktop too - the only
Android-specific thing I found is the feature flag.
Would it make sense to enable this on desktop too, given that we eventually hope
to launch on more platforms?

[jkrcal, 2016/04/14 15:26:59]

Acknowledged.

[Bernhard Bauer, 2016/04/14 16:50:24]

Sooo... not done?

[Marc Treib, 2016/04/14 17:03:45]

No - we talked about this offline. I'm not completely sure if it would just work
on desktop right now, so we decided to leave it as Android-only for now to get
it landed as soon as possible, then revisit desktop.

+        <include name="IDR_SNIPPETS_INTERNALS_HTML" file="resources\snippets_internals.html" allowexternalscript="true" type="BINDATA" />
+        <include name="IDR_SNIPPETS_INTERNALS_CSS" file="resources\snippets_internals.css" type="BINDATA" />
+        <include name="IDR_SNIPPETS_INTERNALS_JS" file="resources\snippets_internals.js" type="BINDATA" />
+      </if>
       <include name="IDR_SUPERVISED_USER_INTERNALS_HTML" file="resources\supervised_user_internals.html" allowexternalscript="true" type="BINDATA" />
       <include name="IDR_SUPERVISED_USER_INTERNALS_CSS" file="resources\supervised_user_internals.css" type="BINDATA" />
       <include name="IDR_SUPERVISED_USER_INTERNALS_JS" file="resources\supervised_user_internals.js" type="BINDATA" />
       <if expr="_google_chrome or enable_hangout_services_extension">
         <!-- Hangout Services extension, included in Google Chrome builds only. -->
         <include name="IDR_HANGOUT_SERVICES_MANIFEST" file="resources\hangout_services\manifest.json" type="BINDATA" />
       </if>
       <include name="IDR_HOTWORD_MANIFEST" file="resources\hotword\manifest.json" type="BINDATA" />
       <include name="IDR_HOTWORD_AUDIO_VERIFICATION_MANIFEST" file="resources\hotword_audio_verification\manifest.json" type="BINDATA" />
       <if expr="not is_android">
@@ skipping 317 matching lines @@
         <part file="media_router_resources.grdp" />
       </if>
       <if expr="not is_android and not is_ios and not chromeos">
         <include name="IDR_IME_WINDOW_CLOSE" file="resources\input_ime\ime_window_close.png" type="BINDATA" />
         <include name="IDR_IME_WINDOW_CLOSE_C" file="resources\input_ime\ime_window_close_click.png" type="BINDATA" />
         <include name="IDR_IME_WINDOW_CLOSE_H" file="resources\input_ime\ime_window_close_hover.png" type="BINDATA" />
       </if>
     </includes>
   </release>
 </grit>