AutoSize TextView - take horizontalScrolling into account

When passing the characteristics of the current TextView
to the StaticLayout for auto-size measurements also take
the horizontallyScrolling into account similarly with how
the actual measurements are done (@ TextView#onMeasure).

Bug: 37254477
Test: cts-tradefed run cts-dev -m CtsWidgetTestCases -t\
      android.widget.cts.TextViewTest

Change-Id: I44b85e77d9b1770f188a0f59f103e3fda284e97a

core/java/android/widget/TextView.java

@@ -8196,9 +8196,11 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
         mTempTextPaint.set(getPaint());
         mTempTextPaint.setTextSize(suggestedSizeInPx);
 
+        final int availableWidth = mHorizontallyScrolling
+                ? VERY_WIDE
+                : getMeasuredWidth() - getTotalPaddingLeft() - getTotalPaddingRight();
         final StaticLayout.Builder layoutBuilder = StaticLayout.Builder.obtain(
-                text, 0, text.length(),  mTempTextPaint,
-                getMeasuredWidth() - getTotalPaddingLeft() - getTotalPaddingRight());
+                text, 0, text.length(),  mTempTextPaint, availableWidth);
 
         layoutBuilder.setAlignment(getLayoutAlignment())
                 .setLineSpacing(getLineSpacingExtra(), getLineSpacingMultiplier())