Like Gmail, we only want to set activated text to a diff color for two pane.

Fixes b/5699511 Draft message is showing in white color text

Change-Id: I9f15807936db8864a1752d56056b08ddfb32f121

src/com/android/email/activity/MessageListItem.java

@@ -418,7 +418,8 @@ public class MessageListItem extends View {
     }
 
     private int getFontColor(int defaultColor) {
-        return isActivated() ? ACTIVATED_TEXT_COLOR : defaultColor;
+        return isActivated() && MessageListItemCoordinates.isMultiPane(mContext) ?
+                ACTIVATED_TEXT_COLOR : defaultColor;
     }
 
     @Override