[2nd attempt] Do not create word breaker for optimization

Creating WordBreaker is not free and can be skipped in most cases
except for the phrase based line break.

Bug: 294278110
Test: atest TextViewSetTextMeasurePerfTest#timeDraw
Test: minikin_tests
Test: CtsTextTestCases
Change-Id: I74d1e388326a927c9b9df0f8de95b7562d42ce26
1 file changed