Disable the flaky test CopylessPasteTest#testValid

chrome/android/javatests/src/org/chromium/chrome/browser/CopylessPasteTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/CopylessPasteTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/CopylessPasteTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/CopylessPasteTest.java
index 59d08fcb1632d6603b3ca1b85dd0b5e5165be52e..c4cf6308e2bfbd43344a3ac5762b79015d1d08da 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/CopylessPasteTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/CopylessPasteTest.java
@@ -136,6 +136,7 @@ public class CopylessPasteTest extends ChromeTabbedActivityTestBase {
      */
     @LargeTest
     @Feature({"CopylessPaste"})
+    @DisabledTest(message = "Flaky: crbug.com/713172")
     public void testValid() throws InterruptedException, TimeoutException {
         loadUrl(mTestServer.getURL(DATA_PAGE));
         mCallbackHelper.waitForCallback(0);