SWE Browser to use generated android manifest xml

Keep single android manifest for all SWE Browser flavors.
Delete src_system/AndrodManifest.xml and use 'swe_browser_type'
gyp (jinja) variable to differentiate between standalone vs
system browser.

Change-Id: I85e5ddce48f95c398959a2e64141c87e4c83e110
3 files changed