Disable the flaky test CopylessPasteTest#testValid

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

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser;
 
 import android.support.test.filters.LargeTest;
 
 import org.chromium.base.Callback;
 import org.chromium.base.ThreadUtils;
@@ skipping 118 matching lines @@
         loadUrl(mTestServer.getURL(NODATA_PAGE));
         mCallbackHelper.waitForCallback(0);
         assertNull(mCallbackHelper.getWebPage());
     }
 
     /**
      * Tests that CopylessPaste works end-to-end.
      */
     @LargeTest
     @Feature({"CopylessPaste"})
+    @DisabledTest(message = "Flaky: crbug.com/713172")
     public void testValid() throws InterruptedException, TimeoutException {
         loadUrl(mTestServer.getURL(DATA_PAGE));
         mCallbackHelper.waitForCallback(0);
         WebPage extracted = mCallbackHelper.getWebPage();
 
         WebPage expected = new WebPage();
         expected.url = new Url();
         expected.url.url = mTestServer.getURL(DATA_PAGE);
         expected.title = "JSON-LD for AppIndexing Test";
         Entity e = new Entity();
@@ skipping 28 matching lines @@
         loadUrl(mTestServer.getURL(DATA_PAGE + uniqueTag));
         mCallbackHelper.waitForCallback(1);
 
         // Cache hit without entities. Shouldn't parse again.
         loadUrl(mTestServer.getURL(NODATA_PAGE + uniqueTag));
         // Cache hit with entities. Shouldn't parse again.
         loadUrl(mTestServer.getURL(DATA_PAGE + uniqueTag));
         assertEquals(2, mCallbackHelper.getCallCount());
     }
 }