markwei 219d4e5137 When recomputing image matrix, use current scale value instead of 1f.
Move updateImageMatrixScale() call from setImageResource() to setImageDrawable() to catch all image drawable changes.
Minor name changes for consistency.

This change should result in identical behavior if previous scale was 1f.

PiperOrigin-RevId: 171204342
2017-11-13 14:23:13 -05:00
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2017-11-10 15:50:23 -05:00