Update documentation for getVideoWidth and getVideoHeight.
Update documentation for getVideoWidth and getVideoHeight.

Ref: http://code.google.com/p/android/issues/detail?id=3024

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base