Add canMakeActivePayment() method to web payments.

chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestTestBase.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestTestBase.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestTestBase.java b/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestTestBase.java
index 8abccce075c89cf5ef3f0d5de704803433048d3d..f7139de280b1a63f71e9320c5b74b1ef61b3a036 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestTestBase.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestTestBase.java
@@ -79,6 +79,7 @@ abstract class PaymentRequestTestBase extends ChromeActivityTestCaseBase<ChromeT
     protected final CallbackHelper mUnableToAbort;
     protected final CallbackHelper mBillingAddressChangeProcessed;
     protected final CallbackHelper mShowFailed;
+    protected final CallbackHelper mActivePaymentQueryResponded;
     protected final CallbackHelper mExpirationMonthChange;
     protected PaymentRequestUI mUI;
 
@@ -103,6 +104,7 @@ abstract class PaymentRequestTestBase extends ChromeActivityTestCaseBase<ChromeT
         mBillingAddressChangeProcessed = new CallbackHelper();
         mExpirationMonthChange = new CallbackHelper();
         mShowFailed = new CallbackHelper();
+        mActivePaymentQueryResponded = new CallbackHelper();
         mViewCoreRef = new AtomicReference<>();
         mWebContentsRef = new AtomicReference<>();
         mTestFilePath = UrlUtils.getIsolatedTestFilePath(
@@ -632,6 +634,12 @@ abstract class PaymentRequestTestBase extends ChromeActivityTestCaseBase<ChromeT
     }
 
     @Override
+    public void onPaymentRequestServiceActivePaymentQueryResponded() {
+        ThreadUtils.assertOnUiThread();
+        mActivePaymentQueryResponded.notifyCalled();
+    }
+
+    @Override
     public void onCardUnmaskPromptReadyForInput(CardUnmaskPrompt prompt) {
         ThreadUtils.assertOnUiThread();
         mReadyForUnmaskInput.notifyCalled(prompt);