Mocha adapter for Polymer browser tests.

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 188 matching lines @@
       <include name="IDR_LOCAL_NTP_HTML" file="resources\local_ntp\local_ntp.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
       <include name="IDR_LOCAL_NTP_CSS" file="resources\local_ntp\local_ntp.css" type="BINDATA" />
       <include name="IDR_LOCAL_NTP_JS" file="resources\local_ntp\local_ntp.js" flattenhtml="true" type="BINDATA" />
       <include name="IDR_LOCAL_NTP_FAST_HTML" file="resources\local_ntp\local_ntp_fast.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
       <include name="IDR_LOCAL_NTP_FAST_CSS" file="resources\local_ntp\local_ntp_fast.css" type="BINDATA" />
       <include name="IDR_LOCAL_NTP_FAST_JS" file="resources\local_ntp\local_ntp_fast.js" flattenhtml="true" type="BINDATA" />
       <include name="IDR_LOCAL_NTP_UTIL_JS" file="resources\local_ntp\local_ntp_util.js" flattenhtml="true" type="BINDATA" />
       <include name="IDR_LOCAL_NTP_DESIGN_JS" file="resources\local_ntp\local_ntp_design.js" flattenhtml="true" type="BINDATA" />
       <include name="IDR_LOCAL_STATE_HTML" file="resources\local_state\local_state.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
       <include name="IDR_LOCAL_STATE_JS" file="resources\local_state\local_state.js" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
+      <include name="IDR_MOCHA_ADAPTER_JS" file="..\test\data\webui\mocha_adapter.js" flattenhtml="true" type="chrome_html" />
+      <include name="IDR_MOCHA_JS" file="..\..\third_party\mocha\mocha.js" flattenhtml="true" type="chrome_html" />

[michaelpg, 2015/05/05 12:23:54]

I don't feel good about adding these to browser_resources. What is the
alternative?

These can't just be GEN_INCLUDE'd in tests because they will fail to eval in the
gen step. Mocha requires an actual live browser.

[stevenjb, 2015/05/05 22:30:28]

Yeah, this seems weird, but I don't know what the alternative would be. +dbeam@,
+jhawkins@, they may have ideas here.

[michaelpg, 2015/05/14 19:08:48]

We could exclude these from branding=Chrome builds, so mocha.js isn't included
in released versions. But it would still be baked into Chromium, which we don't
really want.

We could set up a server in the browser test and serve these files through that,
but then we run into CSP restrictions.

Dan or James, any suggestions or tips?

       <include name="IDR_MOST_VISITED_IFRAME_CSS" file="resources\local_ntp\most_visited_iframe.css" type="BINDATA" />
       <include name="IDR_MOST_VISITED_TITLE_HTML" file="resources\local_ntp\most_visited_title.html" type="BINDATA" />
       <include name="IDR_MOST_VISITED_TITLE_CSS" file="resources\local_ntp\most_visited_title.css" type="BINDATA" />
       <include name="IDR_MOST_VISITED_TITLE_JS" file="resources\local_ntp\most_visited_title.js" type="BINDATA" />
       <include name="IDR_MOST_VISITED_THUMBNAIL_HTML" file="resources\local_ntp\most_visited_thumbnail.html" type="BINDATA" />
       <include name="IDR_MOST_VISITED_THUMBNAIL_CSS" file="resources\local_ntp\most_visited_thumbnail.css" type="BINDATA" />
       <include name="IDR_MOST_VISITED_THUMBNAIL_JS" file="resources\local_ntp\most_visited_thumbnail.js" type="BINDATA" />
       <include name="IDR_MOST_VISITED_SINGLE_HTML" file="resources\local_ntp\most_visited_single.html" type="BINDATA" />
       <include name="IDR_MOST_VISITED_SINGLE_CSS" file="resources\local_ntp\most_visited_single.css" type="BINDATA" />
       <include name="IDR_MOST_VISITED_SINGLE_JS" file="resources\local_ntp\most_visited_single.js" type="BINDATA" />
@@ skipping 230 matching lines @@
       </if>
       <include name="IDR_WHISPERNET_PROXY_MANIFEST" file="resources\whispernet_proxy\manifest.json" type="BINDATA" />
       <include name="IDR_MD_SETTINGS_UI_HTML" file="resources\md_settings\md_settings.html" type="BINDATA" />
       <include name="IDR_MD_SETTINGS_UI_CSS" file="resources\md_settings\md_settings.css" type="BINDATA" />
       <if expr="enable_media_router">
         <part file="media_router_resources.grdp" />
       </if>
     </includes>
   </release>
 </grit>