Masayuki Nakano a7240d8532 Bug 1391538 - nsTextFragment for text nodes in <input> or <textarea> shouldn't store text as single byte characters even if all characters are less than U+0100 r=smaug
nsTextFrame stores text as single byte character array if all characters are
less than U+0100.  Although, this saves footprint, but retrieving and modifying
text needs converting cost.  Therefore, if it's created for a text node in
<input> or <textarea>, it should store text as char16_t array.

MozReview-Commit-ID: 9Z82rketT7g

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extra : rebase_source : 59f59ac1488c21a57d95d253cc794a011d672c95
2017-08-18 16:05:16 +09:00
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