Do not block interaction after cancelling payment app.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentRequestUI.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentRequestUI.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentRequestUI.java
index 5e4a5be274ef884df46fb51b38437c6f5d302d2c..cb4aa4ed2f39ae8173d8993008c79d91a361ec72 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentRequestUI.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentRequestUI.java
@@ -900,7 +900,6 @@ public class PaymentRequestUI implements DialogInterface.OnDismissListener, View
                 ((FrameLayout.LayoutParams) mRequestView.getLayoutParams()).height =
                         LayoutParams.MATCH_PARENT;
                 mRequestView.requestLayout();
-                expand(mSelectedSection);
             }
         }
     }