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authorDianne Hackborn <hackbod@google.com>2015-08-03 17:14:46 -0700
committerDianne Hackborn <hackbod@google.com>2015-08-03 17:33:38 -0700
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Fix issue #22860466: viapi security bug - rubber stamping in nested VIs
Add new Activity.isVoiceInteractionRoot() API that an activity can use to determine whether it is the root activity of a voice interaction session started by the user's designated voice interaction service. This is a special new API that apps must explicitly check, because as with visual activities the model behind an activity should usually be that it accomplishes its task by interacting with the user (implicitly getting their approval) rather than trusting that whoever invoked it is telling it to do what the user once. In the voice world, however, there are some cases where quick interactions want to allow for immediate execution without further user involvement, so this API allows for that without opening up security holes from other applications. Change-Id: Ie02d2458f16cb0b12af825641bcf8beaf086931b
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