Update the UA list to something more modern.

Waf checking in the chromium fetch interface.
Revs have implemented a bunch more then would otherwise be reasonable due to debugging for pypi/warehouse#4079

WebRequest/ChromiumMixin.py

@@ -71,6 +71,14 @@ def getItemChromium(self, itemUrl):
 
 		# So, self._cr.page_source appears to be the *compressed* page source as-rendered. Because reasons.
 		content = response['content']
+
+		if isinstance(content, bytes):
+			self._check_waf(content, itemUrl)
+		elif isinstance(content, str):
+			self._check_waf(content.encode("UTF-8"), itemUrl)
+		else:
+			self.log.error("Unknown type of content return: %s" % (type(content), ))
+
 		return content, fileN, mType
 
 	def getHeadTitleChromium(self, url, referrer=None):
@@ -132,6 +140,8 @@ def chromiumGetRenderedItem(self, url):
 			self._syncOutOfChromium(cr)
 
 
+		self._check_waf(content.encode("UTF-8"), url)
+
 		return content, fileN, mType