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Commit b68d147b authored by Raph Levien's avatar Raph Levien
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Allow null string to BidiFormatter#unicodeWrap 

The BidiFormatter#unicodeWrap() methods allow null string, but the
toString() call on the result in the refactored code was crashing.
Also adds @Nullable annotations.

Bug: 27124532
Change-Id: I25922d104587af4a850c3640987af9315c3d3bde
parent ab9651b9
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