Merge "Add startCaptivePortalApp to system API" am: 9e18198cc5 am: b01cafdb08

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1639899

Change-Id: I7e82a2a8efb13b960b8f79b9646fcac07c7ac569
tree: 0cde89df7d6900ed5254077a1b27b7ec203ccca8
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS