Move some files around in ash in preparation for splitting content stuff some more.

[email protected]
http://crbug.com/332504

Review URL: https://codereview.chromium.org/1363643004

Cr-Commit-Position: refs/heads/master@{#350941}
diff --git a/BUILD.gn b/BUILD.gn
index 93fdbd4..498c599 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -430,7 +430,7 @@
 
     if (use_ash) {
       deps += [
-        "//ash:ash_shell",
+        "//ash:ash_shell_with_content",
         "//ash:ash_unittests",
       ]
     }