[Android WebView] Prepare loading error messages for TC

While trying to hook up new strings from crrev.com/1270793002 into TC,
I have realized that some changes need to be made to their definitions.

1. In Chrome, html fragments (grit 'structures') are not used. Instead, they
   just put into .grd files as regular messages, with markup being isolated
   inside fake placeholders to avoid the translators messing with it.
   (and grit also requires non-empty 'example' tags to present for them).
   Thus, removed 'structure.html' and put its contents into a scary-looking
   message.

2. .grd files containing messages must not include anything, as only .grd
   files themselves are copied into the internal tree for processing.
   Thus, split the messages into a separate .grd file with no includes.

3. From the strings .grd, per-locale .pak files must be produced, and then
   all those xxx_strings_xx.pak files repacked into a single xx.pak file.
   As WebView already uses content_strings, changed the script to pack
   content_strings together with the new strings, and renamed the script
   accordingly.

4. As I would not like to repeat this process again would we need some
   native strings on the browser part, and as we share native resources
   between the browser and the renderer, moved the .grd files out from
   'renderer' into a new 'ui' subdir.

BUG=515691

Review URL: https://codereview.chromium.org/1273263002

Cr-Commit-Position: refs/heads/master@{#342367}

3 files changed, 112 insertions, 0 deletions

diff --git a/android_webview/ui/aw_resources.grd b/android_webview/ui/aw_resources.grd
new file mode 100644
index 0000000..9bb0cb7
--- /dev/null
+++ b/android_webview/ui/aw_resources.grd
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<grit current_release="1" latest_public_release="0">
+  <outputs>
+    <output filename="grit/aw_resources.h" type="rc_header">
+      <emit emit_type='prepend'></emit>
+    </output>
+    <output filename="aw_resources.pak" type="data_package" />
+  </outputs>
+  <release seq="1">
+    <includes>
+      <include name="IDR_AW_LOAD_ERROR_HTML" file="resources\load_error.html" flattenhtml="true" type="BINDATA" />
+    </includes>
+  </release>
+</grit>
diff --git a/android_webview/ui/aw_strings.grd b/android_webview/ui/aw_strings.grd
new file mode 100644
index 0000000..44d5135
--- /dev/null
+++ b/android_webview/ui/aw_strings.grd
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<grit current_release="1" latest_public_release="0">
+  <outputs>
+    <output filename="grit/aw_strings.h" type="rc_header">
+      <emit emit_type='prepend'></emit>
+    </output>
+    <output filename="aw_strings_am.pak" type="data_package" lang="am" />
+    <output filename="aw_strings_ar.pak" type="data_package" lang="ar" />
+    <output filename="aw_strings_bg.pak" type="data_package" lang="bg" />
+    <output filename="aw_strings_bn.pak" type="data_package" lang="bn" />
+    <output filename="aw_strings_ca.pak" type="data_package" lang="ca" />
+    <output filename="aw_strings_cs.pak" type="data_package" lang="cs" />
+    <output filename="aw_strings_da.pak" type="data_package" lang="da" />
+    <output filename="aw_strings_de.pak" type="data_package" lang="de" />
+    <output filename="aw_strings_el.pak" type="data_package" lang="el" />
+    <output filename="aw_strings_en-US.pak" type="data_package" lang="en" />
+    <output filename="aw_strings_en-GB.pak" type="data_package" lang="en-GB" />
+    <output filename="aw_strings_es.pak" type="data_package" lang="es" />
+    <output filename="aw_strings_es-419.pak" type="data_package" lang="es-419" />
+    <output filename="aw_strings_et.pak" type="data_package" lang="et" />
+    <output filename="aw_strings_fa.pak" type="data_package" lang="fa" />
+    <output filename="aw_strings_fi.pak" type="data_package" lang="fi" />
+    <output filename="aw_strings_fil.pak" type="data_package" lang="fil" />
+    <output filename="aw_strings_fr.pak" type="data_package" lang="fr" />
+    <output filename="aw_strings_gu.pak" type="data_package" lang="gu" />
+    <output filename="aw_strings_he.pak" type="data_package" lang="he" />
+    <output filename="aw_strings_hi.pak" type="data_package" lang="hi" />
+    <output filename="aw_strings_hr.pak" type="data_package" lang="hr" />
+    <output filename="aw_strings_hu.pak" type="data_package" lang="hu" />
+    <output filename="aw_strings_id.pak" type="data_package" lang="id" />
+    <output filename="aw_strings_it.pak" type="data_package" lang="it" />
+    <output filename="aw_strings_ja.pak" type="data_package" lang="ja" />
+    <output filename="aw_strings_kn.pak" type="data_package" lang="kn" />
+    <output filename="aw_strings_ko.pak" type="data_package" lang="ko" />
+    <output filename="aw_strings_lt.pak" type="data_package" lang="lt" />
+    <output filename="aw_strings_lv.pak" type="data_package" lang="lv" />
+    <output filename="aw_strings_ml.pak" type="data_package" lang="ml" />
+    <output filename="aw_strings_mr.pak" type="data_package" lang="mr" />
+    <output filename="aw_strings_ms.pak" type="data_package" lang="ms" />
+    <output filename="aw_strings_nl.pak" type="data_package" lang="nl" />
+    <!-- The translation console uses 'no' for Norwegian Bokmål. It should
+         be 'nb'. -->
+    <output filename="aw_strings_nb.pak" type="data_package" lang="no" />
+    <output filename="aw_strings_pl.pak" type="data_package" lang="pl" />
+    <output filename="aw_strings_pt-BR.pak" type="data_package" lang="pt-BR" />
+    <output filename="aw_strings_pt-PT.pak" type="data_package" lang="pt-PT" />
+    <output filename="aw_strings_ro.pak" type="data_package" lang="ro" />
+    <output filename="aw_strings_ru.pak" type="data_package" lang="ru" />
+    <output filename="aw_strings_sk.pak" type="data_package" lang="sk" />
+    <output filename="aw_strings_sl.pak" type="data_package" lang="sl" />
+    <output filename="aw_strings_sr.pak" type="data_package" lang="sr" />
+    <output filename="aw_strings_sv.pak" type="data_package" lang="sv" />
+    <output filename="aw_strings_sw.pak" type="data_package" lang="sw" />
+    <output filename="aw_strings_ta.pak" type="data_package" lang="ta" />
+    <output filename="aw_strings_te.pak" type="data_package" lang="te" />
+    <output filename="aw_strings_th.pak" type="data_package" lang="th" />
+    <output filename="aw_strings_tr.pak" type="data_package" lang="tr" />
+    <output filename="aw_strings_uk.pak" type="data_package" lang="uk" />
+    <output filename="aw_strings_vi.pak" type="data_package" lang="vi" />
+    <output filename="aw_strings_zh-CN.pak" type="data_package" lang="zh-CN" />
+    <output filename="aw_strings_zh-TW.pak" type="data_package" lang="zh-TW" />
+  </outputs>
+  <release seq="1">
+    <messages fallback_to_english="true">
+      <message name="IDS_AW_WEBPAGE_NOT_AVAILABLE" desc="The title of the webpage shown when the requested URL in unavailable">
+        Webpage not available
+      </message>
+      <message name="IDS_AW_WEBPAGE_CAN_NOT_BE_LOADED" desc="Message informing the user that the page can not be loaded">
+        The webpage at <ph name="PAGE">&lt;strong&gt;$1&lt;/strong&gt;<ex>page.html</ex></ph> could not be loaded because:
+      </message>
+      <message name="IDS_AW_WEBPAGE_TEMPORARILY_DOWN" desc="Message informing the user that it is not possible to contact the server">
+        The webpage at <ph name="PAGE">&lt;strong&gt;$1&lt;/strong&gt;<ex>page.html</ex></ph> might be temporarily down or it may have moved permanently to a new web address.
+      </message>
+      <message name="IDS_AW_WEBPAGE_TEMPORARILY_DOWN_SUGGESTIONS" desc="Suggestions provided to the user when it is not possible to contact the server"><ph name="MARKUP_1">&lt;strong&gt;<ex>_</ex></ph>Suggestions:<ph name="MARKUP_2">&lt;/strong&gt;&lt;ul&gt;&lt;li&gt;<ex>_</ex></ph>Make sure you have a data connection<ph name="MARKUP_3">&lt;/li&gt;&lt;li&gt;<ex>_</ex></ph>Reload this webpage later<ph name="MARKUP_4">&lt;/li&gt;&lt;li&gt;<ex>_</ex></ph>Check the address you entered<ph name="MARKUP_5">&lt;/li&gt;&lt;/ul&gt;<ex>_</ex></ph>
+      </message>
+    </messages>
+  </release>
+</grit>
diff --git a/android_webview/ui/resources/load_error.html b/android_webview/ui/resources/load_error.html
new file mode 100644
index 0000000..fc64efd
--- /dev/null
+++ b/android_webview/ui/resources/load_error.html
@@ -0,0 +1,20 @@
+<html>
+  <head>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no"/>
+    <title>$1</title>
+    <style type="text/css">
+      body { margin-top: 0px; padding-top: 0px; $4 } /* Used for additional styles, e.g. direction */
+      h2   { margin-top: 5px; padding-top: 0px; }
+    </style>
+
+    <body>
+      <!-- Upside down Android -->
+      <img width="50" height="26" align="top" src="data:image/png;base64,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" />
+      <h2>$1</h2>
+      <!-- Page url -->
+      <p>$2</p>
+      <!-- Error description or suggestions -->
+      <p>$3</p>
+    </body>
+  </head>
+</html>