Set proper action name on Pay Intent

chrome/android/java/src/org/chromium/chrome/browser/payments/AndroidPaymentApp.java

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/AndroidPaymentApp.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/AndroidPaymentApp.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/AndroidPaymentApp.java
index b9c40ded9b8ee5e88e283281fc072f93c802fef0..9850688e84dc2759c5ce39faee259253992124e1 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/payments/AndroidPaymentApp.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/AndroidPaymentApp.java
@@ -30,6 +30,9 @@ import java.util.Set;
 /** The point of interaction with a locally installed 3rd party native Android payment app. */
 public class AndroidPaymentApp extends PaymentInstrument implements PaymentApp,
         WindowAndroid.IntentCallback {
+    /** The action name for the Pay Intent. */
+    public static final String ACTION_PAY = "org.chromium.intent.action.PAY";
+
     private static final String EXTRA_METHOD_NAME = "methodName";
     private static final String EXTRA_DATA = "data";
     private static final String EXTRA_ORIGIN = "origin";
@@ -61,6 +64,7 @@ public class AndroidPaymentApp extends PaymentInstrument implements PaymentApp,
         mWebContents = webContents;
         mPayIntent = new Intent();
         mPayIntent.setClassName(packageName, activity);
+        mPayIntent.setAction(ACTION_PAY);
         mMethodNames = new HashSet<>();
     }