Add chrome://usb-internals page for adding and removing test devices.

chrome/browser/browser_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <grit latest_public_release="0" current_release="1" output_all_resource_defines="false">
   <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 281 matching lines @@
       <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" />
       <include name="IDR_MOST_VISITED_UTIL_JS" file="resources\local_ntp\most_visited_util.js" type="BINDATA" flattenhtml="true" />
       <include name="IDR_OMNIBOX_HTML" file="resources\omnibox\omnibox.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
       <include name="IDR_OMNIBOX_CSS" file="resources\omnibox\omnibox.css" type="BINDATA" />
       <include name="IDR_OMNIBOX_JS" file="resources\omnibox\omnibox.js" type="BINDATA" />
       <include name="IDR_OMNIBOX_MOJO_JS" file="${root_gen_dir}\chrome\browser\ui\webui\omnibox\omnibox.mojom.js" use_base_dir="false" type="BINDATA"/>
+      <include name="IDR_ORIGIN_MOJO_JS" file="${root_gen_dir}\url\mojo\origin.mojom.js" use_base_dir="false" type="BINDATA"/>
       <if expr="enable_plugins">
         <include name="IDR_PLUGINS_HTML" file="resources\plugins.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
         <include name="IDR_PLUGINS_JS" file="resources\plugins.js" type="BINDATA" />
         <include name="IDR_PLUGINS_MOJO_JS" file="${root_gen_dir}\chrome\browser\ui\webui\plugins\plugins.mojom.js" use_base_dir="false" type="BINDATA"/>
       </if>
       <include name="IDR_COMPONENTS_HTML" file="resources\components.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
       <include name="IDR_COMPONENTS_JS" file="resources\components.js" type="BINDATA" />
       <if expr="enable_plugins">
         <include name="IDR_PDF_MANIFEST" file="resources\pdf\manifest.json" type="BINDATA" />
       </if>
@@ skipping 52 matching lines @@
       <include name="IDR_SITE_ENGAGEMENT_MOJO_JS" file="${root_gen_dir}\chrome\browser\ui\webui\engagement\site_engagement.mojom.js" use_base_dir="false" type="BINDATA"/>
       <include name="IDR_URL_MOJO_JS" file="${root_gen_dir}\url\mojo\url.mojom.js" use_base_dir="false" type="BINDATA"/>
       <include name="IDR_SYNC_CONFIRMATION_CSS" file="resources\sync_confirmation\sync_confirmation.css" type="BINDATA" />
       <include name="IDR_SYNC_CONFIRMATION_HTML" file="resources\sync_confirmation\sync_confirmation.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
       <include name="IDR_SYNC_CONFIRMATION_JS" file="resources\sync_confirmation\sync_confirmation.js" type="BINDATA" />
       <include name="IDR_UBER_HTML" file="resources\uber\uber.html" flattenhtml="true" type="BINDATA" />
       <include name="IDR_UBER_JS" file="resources\uber\uber.js" type="BINDATA" />
       <include name="IDR_UBER_FRAME_HTML" file="resources\uber\uber_frame.html" flattenhtml="true" type="BINDATA" />
       <include name="IDR_UBER_FRAME_JS" file="resources\uber\uber_frame.js" flattenhtml="true" type="BINDATA" />
       <include name="IDR_UBER_UTILS_JS" file="resources\uber\uber_utils.js" type="BINDATA" />
+      <include name="IDR_USB_INTERNALS_CSS" file="resources\usb_internals\usb_internals.css" type="BINDATA" />
+      <include name="IDR_USB_INTERNALS_HTML" file="resources\usb_internals\usb_internals.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
+      <include name="IDR_USB_INTERNALS_JS" file="resources\usb_internals\usb_internals.js" type="BINDATA" />
+      <include name="IDR_USB_INTERNALS_MOJO_JS" file="${root_gen_dir}\chrome\browser\ui\webui\usb_internals\usb_internals.mojom.js" use_base_dir="false" type="BINDATA"/>
       <include name="IDR_USER_ACTIONS_HTML" file="resources\user_actions\user_actions.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
       <include name="IDR_USER_ACTIONS_CSS" file="resources\user_actions\user_actions.css" type="BINDATA" />
       <include name="IDR_USER_ACTIONS_JS" file="resources\user_actions\user_actions.js" type="BINDATA" />
       <if expr="enable_webrtc">
         <include name="IDR_WEBRTC_LOGS_HTML" file="resources\media\webrtc_logs.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
         <include name="IDR_WEBRTC_LOGS_JS" file="resources\media\webrtc_logs.js" type="BINDATA" />
       </if>
       <include name="IDR_WEBSTORE_MANIFEST" file="resources\webstore_app\manifest.json" type="BINDATA" />
       <include name="IDR_CRYPTOTOKEN_MANIFEST" file="resources\cryptotoken\manifest.json" type="BINDATA" />
       <include name="IDR_GAIA_AUTH_MANIFEST" file="resources\gaia_auth\manifest.json" type="BINDATA" />
@@ skipping 167 matching lines @@
         <include name="IDR_CAST_FAVICON" file="resources\cast\cast_favicon.ico" type="BINDATA" />
       </if>
       <if expr="not is_android and not is_ios">
         <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>