Make BugreportManager class final.
Add FloatRange annotation for BugreportManager.onProgress() function's
parameter.
Make @IntDef in BugreportMode hidden.
Bug: 126434607
Test: builds
Change-Id: I95f004106ba97bc9e99859a8b23b96a86b6a43f4
Merged-In: I95f004106ba97bc9e99859a8b23b96a86b6a43f4