am 96e0c315: Merge change Ia3f7ef64 into eclair

Merge commit '96e0c3156e21bbdb0d94201b08d80379b98c472a' into eclair-mr2

* commit '96e0c3156e21bbdb0d94201b08d80379b98c472a':
  PowerManager: Don't poke user activity in setKeyboardVisibility unless the state actually changed.