Keep only base/extractor.[cc|h].

data/server_manifest_with_unsupported_tags.xml

Index: data/server_manifest_with_unsupported_tags.xml
diff --git a/data/server_manifest_with_unsupported_tags.xml b/data/server_manifest_with_unsupported_tags.xml
deleted file mode 100644
index 935ecab5c7127162e1f853773dd33ffdd6438abf..0000000000000000000000000000000000000000
--- a/data/server_manifest_with_unsupported_tags.xml
+++ /dev/null
@@ -1,53 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<gupdate xmlns="http://www.google.com/update2/response" protocol="2.0"
-         ExtraUnsupportedAttribute='123'>
-<UnsupportedElement1 UnsupportedAttribute1='some value' />
-<app appid="{D6B08267-B440-4C85-9F79-E195E80D9937}" status="ok">
-  <updatecheck status="ok"
-               codebase="http://dl.google.com/foo/1.0.101.0/test_foo_v1.0.101.0.msi"
-               size="80896"
-               hash="6bPU7OnbKAGJ1LOw6fpIUuQl1FQ="
-               needsadmin="true"
-               successurl="http://testsuccessurl.com"
-               terminateallbrowsers="true"
-               onsuccess="exitsilently"/>
-  <data index="verboselogging" name="install" status="ok">
-  {
-    "distribution": {
-      "verbose_logging": true
-    }
-  }
-  </data>
-  <data index="skipfirstrun" name="install" status="ok">{
-    "distribution": {
-      "skip_first_run_ui": true,
-    }
-  }
-  </data>
-  <ping status="ok"/>
-</app>
-<app appid="{D6B08267-B440-4C85-9F79-E195E80D9936}" status="ok">
-  <updatecheck status="noupdate"/>
-  <ping status="ok"/>
-</app>
-<app appid="{104844D6-7DDA-460B-89F0-FBF8AFDD0A67}" status="ok">
-  <updatecheck status="ok"
-               codebase="http://dl.google.com/foo/1.0.102.0/user_foo_v1.0.102.0.msi"
-               size="630152"
-               hash="/XzRh1rpwqrDr6ashpmQnYZIzDI="
-               needsadmin="false"
-               arguments="/install"
-               unknownfeature="Tests behavior if server supports features client does not."/>
-  <ping status="ok"/>
-</app>
-<app appid="{884a01d9-fb67-430a-b491-28f960dd7309}" status="restricted"></app>
-<app appid="{8CF15C17-7BB5-433a-8E6C-C018D79D00B1}" status="ok">
-  <updatecheck status="error-osnotsupported"
-               errorurl="http://foo.google.com/support/article.py?id=12345&amp;hl=es-419&amp;os=5.1"/>
-  <ping status="ok"/>
-</app>
-<UnsupportedElement2 UnsupportedAttribute2='Unsupported value' >
-  Some strings inside an unsupported element, should be ignored.
-  <ping status="ok"/>
-</UnsupportedElement2>
-</gupdate>