Revert "Revert "Implements the "Save App Pair" button in Overvie..."

Revert submission 26420318-revert-26391074-save-app-pair-button-ZKCRCDSCSN

Reason for revert: Test failure in question wasn't related to this topic b/328016248

Reverted changes: /q/submissionid:26420318-revert-26391074-save-app-pair-button-ZKCRCDSCSN

Change-Id: I2a4dbb83720768a9d29a4371c77e3b9410ab2fea
12 files changed