Merge "Use openPipeHelper() for streaming IconsContentProvider data." into rvc-dev am: 100ae78d72 am: 7378cf38ba

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12000566

Change-Id: I42a83517a112af5eaa1245a4acd4fab5f0619546