[Payments] Show complete profiles first and limit to 4 suggestions.

chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentOption.java

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentOption.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentOption.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentOption.java
index 638df3af6b830eaec5863b4b8fd173961a82a9d2..c57bdedad09b0c8ab3455d0982435b1e05a58fce 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentOption.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentOption.java
@@ -10,10 +10,11 @@ import javax.annotation.Nullable;
  * An option that the user can select, e.g., a shipping option, a shipping address, or a payment
  * method.
  */
-public class PaymentOption {
+public class PaymentOption implements Completable {
     /** The placeholder value that indicates the absence of an icon for this option. */
     public static final int NO_ICON = 0;
 
+    protected boolean mIsComplete;
     private final String mId;
     private final int mIcon;
     @Nullable private String mLabel;
@@ -35,6 +36,11 @@ public class PaymentOption {
         mIcon = icon;
     }
 
+    @Override
+    public boolean isComplete() {
+        return mIsComplete;
+    }
+
     /**
      * The non-human readable identifier for this option. For example, "standard_shipping" or the
      * GUID of an autofill card.