push notif: Consolidate and simplify GCM tests.
push notif: Consolidate and simplify GCM tests.

punchagan/zulip,andersk/zulip,timabbott/zulip,andersk/zulip,brainwane/zulip,shubhamdhama/zulip,brainwane/zulip,shubhamdhama/zulip,brainwane/zulip,eeshangarg/zulip,hackerkid/zulip,punchagan/zulip,zulip/zulip,rishig/zulip,eeshangarg/zulip,brainwane/zulip,rishig/zulip,showell/zulip,kou/zulip,brainwane/zulip,kou/zulip,eeshangarg/zulip,synicalsyntax/zulip,timabbott/zulip,eeshangarg/zulip,rht/zulip,rht/zulip,showell/zulip,rht/zulip,zulip/zulip,kou/zulip,timabbott/zulip,kou/zulip,punchagan/zulip,timabbott/zulip,tommyip/zulip,synicalsyntax/zulip,shubhamdhama/zulip,synicalsyntax/zulip,zulip/zulip,brainwane/zulip,shubhamdhama/zulip,andersk/zulip,andersk/zulip,showell/zulip,hackerkid/zulip,kou/zulip,eeshangarg/zulip,brainwane/zulip,kou/zulip,shubhamdhama/zulip,hackerkid/zulip,timabbott/zulip,punchagan/zulip,hackerkid/zulip,synicalsyntax/zulip,rishig/zulip,rht/zulip,zulip/zulip,rishig/zulip,tommyip/zulip,synicalsyntax/zulip,rishig/zulip,hackerkid/zulip,showell/zulip,showell/zulip,rht/zulip,tommyip/zulip,punchagan/zulip,tommyip/zulip,punchagan/zulip,timabbott/zulip,kou/zulip,shubhamdhama/zulip,rht/zulip,showell/zulip,andersk/zulip,zulip/zulip,hackerkid/zulip,synicalsyntax/zulip,timabbott/zulip,eeshangarg/zulip,zulip/zulip,shubhamdhama/zulip,hackerkid/zulip,rishig/zulip,zulip/zulip,tommyip/zulip,punchagan/zulip,andersk/zulip,synicalsyntax/zulip,rht/zulip,showell/zulip,tommyip/zulip,tommyip/zulip,andersk/zulip,rishig/zulip,eeshangarg/zulip