commit 634044dc0b00f3bf2f9f826d81fbfbb9b4ce9440
author govenliu <govenliu@google.com> Sun Jan 26 17:51:47 2020 +0800
committer Goven Liu <govenliu@google.com> Thu Jan 30 07:18:18 2020 +0000
tree d610ab7cc1d983c3227e89fd6653ddb733b3f734
parent 4ee5d1819b0439dbef10882f56b0bb6896feb57e

[Wi-Fi] [a11y] In Wi-Fi data usage page, Talkback should also announce the Progress bar percentage instead of "Progress bar" only.

Add conent description for talkback to announce, if the progress bar is 50%, then before modification is "Progress bar", and after modification is "50% Progress bar".

Bug: 146811265
Test: Add following unit test case to test if content description is correct or not:
      createPref_progressBarShouldSetPercentageContentDescription().

Change-Id: I71483df8e12f08c4c8c96ab3964666bf97872a83