commit 914073c7cf933229a3f51ddeddb63bb9725a70be
author Yusuf Ozuysal <yusufo@google.com> Mon Jan 30 12:00:23 2017 -0800
committer Yusuf Ozuysal <yusufo@google.com> Thu Feb 02 15:36:42 2017 -0800
tree 4954de7e27727b9ba456312ed6a69c196c2b6298
parent c83be95bd678e39a0d9a26afc50804bc47b700f1

Add postMessage APIs to customtabs support lib

Adds CustomTabsSession#requestPostMessageChannel,
CustomTabsSession#postMessage,
CustomTabsCallback#onMessageChannelCreated,
CustomTabsCallback#onPostMessage for sending an receiving postMessage
requests to the mainframe of the initial url.

Adds PostMessageService and PostMessageServiceConnection for handling
the browser->client callback lifecycle and message routing

BUG=32809427
Test: android.support.customtabs.PostMessageTest, android.support.customtabs.PostMessageConnectionTest

Change-Id: I3324a382b81fad97000d48389f4a0411e0b6f89e