Disallow loading icon from content URI to PipMenu

Bug: 278246904
Test: manually, with the PoC app attached to the bug
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:1aee65603e262affd815fa53dcc5416c605e4037)
Merged-In: Ib3f5b8b6b9ce644fdf1173548d9078e4d969ae2e
Change-Id: Ib3f5b8b6b9ce644fdf1173548d9078e4d969ae2e
1 file changed