aura: Allow creating content_shell without views.

content/shell/DEPS

 include_rules = [
   "+v8/include",
 
   # For chromeos build config
   "+chromeos/dbus",
 
   # The content_shell is the canonical sample embedder, so it only uses
   # content's public API.
   "+content/public",
 
   # The content_shell is an embedder so it must work with resource bundles.
   "+ui/base/l10n",
   "+ui/base/resource",
 
   # Shell resources
   "+grit/net_resources.h",
   "+grit/shell_resources.h",
 
   # The content_shell for aura must work with the views and aura
   "+ui/aura",
   "+ui/views",
 
   # For WebTestRunner library
   "+third_party/WebKit/public/testing",
 ]
 
 specific_include_rules = {
-  "shell_aura\.cc": [
+  "shell_views\.cc": [
     "+ui/shell"
   ],
 }