Implement LineBreaker callback and fix indent repeating.

The last indent should be repeated, so we need to pass an int array
instead of null even if the indent offset is out of array length.

Bug: 65024629
Test: bit CtsTextTestCases:android.text.cts.StaticLayoutTest
Test: bit CtsTextTestCases:android.text.cts.DynamicLayoutTest
Test: bit CtsWidgetTestCases:android.widget.cts.TextViewTest
Bug: 65024629

Change-Id: Ic1274d797db27ae1921135a27bab55e475369710