Add the language switcher to the packages and classes pages for the Android Platform.

Cherry pick of 775276b7739f7253de9d0c6cb80cae77fe354053 from AOSP

Bug: 169960963
Test: generated reference docs before/after change and verified that
switcher appears in the packages and classes pages.

Change-Id: I3b7bcc1489206f6b7eb84846dfdc157d6ffc8306
Merged-In: I3b7bcc1489206f6b7eb84846dfdc157d6ffc8306
1 file changed
tree: f95263c33a855c69a499c737fe82a0ab9970ddd7
  1. Android.bp
  2. switcher4.py