[Signin Error Dialog] (1/3) Added necessary web components

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 359 matching lines @@
       </if>
       <include name="IDR_PROFILER_HTML" file="resources\profiler\profiler.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
       <include name="IDR_PROFILER_JS" file="resources\profiler\profiler.js" flattenhtml="true" type="BINDATA" />
       <if expr="enable_google_now">
         <include name="IDR_GOOGLE_NOW_MANIFEST" file="resources\google_now\manifest.json" 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="${root_gen_dir}\chrome\browser\ui\webui\engagement\site_engagement.mojom.js" use_base_dir="false" type="BINDATA"/>
       <include name="IDR_URL_MOJO_JS" file="${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_SIGNIN_SHARED_CSS_HTML" file="resources\signin\signin_shared_css.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />

[Dan Beam, 2016/08/30 00:43:08]

can you use preprocess="true" instead of flattenhtml="true" here?

+      <include name="IDR_SYNC_CONFIRMATION_CSS" file="resources\signin\sync_confirmation\sync_confirmation.css" type="BINDATA" />
+      <include name="IDR_SYNC_CONFIRMATION_HTML" file="resources\signin\sync_confirmation\sync_confirmation.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
+      <include name="IDR_SYNC_CONFIRMATION_JS" file="resources\signin\sync_confirmation\sync_confirmation.js" type="BINDATA" />
+      <include name="IDR_SIGNIN_ERROR_HTML" file="resources\signin\signin_error\signin_error.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
+      <include name="IDR_SIGNIN_ERROR_JS" file="resources\signin\signin_error\signin_error.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" />
@@ skipping 176 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>