Make sure that those old aq_* attributes work on browser views that only inherit

from Explicit as well.

lib/python/Products/Five/browser/tests/aqlegacy.py

@@ -32,6 +32,13 @@ class LegacyAttributes(BrowserView):
     def __call__(self):
         return repr([obj for obj in self.aq_chain])
 
+class ExplicitLegacyAttributes(Acquisition.Explicit):
+    """Make sure that those old aq_* attributes work on browser views
+    that only inherit from Explicit as well."""
+
+    def __call__(self):
+        return repr([obj for obj in self.aq_chain])
+
 class LegacyTemplate(BrowserView):
 
     template = ViewPageTemplateFile('falcon.pt')

lib/python/Products/Five/browser/tests/aqlegacy.zcml

@@ -8,6 +8,13 @@
       permission="zope.Public"
       />
 
+  <browser:page
+      for="*"
+      name="explicitattributes"
+      class=".aqlegacy.ExplicitLegacyAttributes"
+      permission="zope.Public"
+      />
+
   <browser:page
       for="*"
       name="template"

lib/python/Products/Five/browser/tests/aqlegacy_ftest.txt

@@ -26,6 +26,15 @@ views still works (the printed output is the aq_chain of the view):
    <Application at >,
    <ZPublisher.BaseRequest.RequestContainer object at ...>]
 
+The same goes for browser views that just mix in Acquisition.Explicit:
+
+  >>> browser.open('http://localhost/test_folder_1_/explicitattributes')
+  >>> print browser.contents
+  [<Products.Five.metaclass.ExplicitLegacyAttributes object at ...>,
+   <Folder at /test_folder_1_>,
+   <Application at >,
+   <ZPublisher.BaseRequest.RequestContainer object at ...>]
+
 Let's do some more manual tests with the view object.  But first we
 must get it: