Merge "Clarify javadocs about mode to parse file." into sc-dev am: b84e8289 am: 0fa9a0e5 am: 333e3f3c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14621143

Change-Id: I72e871c48b6cbd0ce8bf577336ab9fa737be7dc6