Throw an error when the screen is refreshed too frequently to dump

[Fuzion24]

https://android.googlesource.com/platform/frameworks/testing/+/jb-mr2-release/uiautomator/cmds/uiautomator/src/com/android/commands/uiautomator/DumpCommand.java

[dtmilano]

I changed the search as you can have a View containing the same text and it will produce a false positive.