Minimize EditText Spans 4/9: ReactForegroundColorSpan (facebook#36545)

Summary:
Pull Request resolved: facebook#36545

This is part of a series of changes to minimize the number of spans committed to EditText, as a mitigation for platform issues on Samsung devices. See this [GitHub thread]( facebook#35936 (comment)) for greater context on the platform behavior.

This adds ReactForegroundColorSpan to the list of spans eligible to be stripped.

Changelog:
[Android][Fixed] - Minimize Spans 4/N: ReactForegroundColorSpan

Reviewed By: javache

Differential Revision: D44240780

fbshipit-source-id: d86939cc2d7ed9116a4167026c7d48928fc51757

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactEditText.java

@@ -52,6 +52,7 @@
 import com.facebook.react.views.text.CustomStyleSpan;
 import com.facebook.react.views.text.ReactAbsoluteSizeSpan;
 import com.facebook.react.views.text.ReactBackgroundColorSpan;
+import com.facebook.react.views.text.ReactForegroundColorSpan;
 import com.facebook.react.views.text.ReactSpan;
 import com.facebook.react.views.text.ReactTextUpdate;
 import com.facebook.react.views.text.ReactTypefaceUtils;
@@ -692,6 +693,16 @@ public boolean test(ReactBackgroundColorSpan span) {
             return span.getBackgroundColor() == mReactBackgroundManager.getBackgroundColor();
           }
         });
+
+    stripSpansOfKind(
+        sb,
+        ReactForegroundColorSpan.class,
+        new SpanPredicate<ReactForegroundColorSpan>() {
+          @Override
+          public boolean test(ReactForegroundColorSpan span) {
+            return span.getForegroundColor() == getCurrentTextColor();
+          }
+        });
   }
 
   private <T> void stripSpansOfKind(
@@ -718,6 +729,7 @@ private void restoreStyleEquivalentSpans(SpannableStringBuilder workingText) {
 
     List<Object> spans = new ArrayList<>();
     spans.add(new ReactAbsoluteSizeSpan(mTextAttributes.getEffectiveFontSize()));
+    spans.add(new ReactForegroundColorSpan(getCurrentTextColor()));
 
     int backgroundColor = mReactBackgroundManager.getBackgroundColor();
     if (backgroundColor != Color.TRANSPARENT) {