[Android] Disable CopylessPasteTest.testNoMeta.

Very flaky on linux_android_rel_ng.

BUG=713895
TBR=wychen@chromium.org

Review-Url: https://codereview.chromium.org/2850853005
Cr-Commit-Position: refs/heads/master@{#468219}

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

@@ -125,6 +125,7 @@ public class CopylessPasteTest extends ChromeTabbedActivityTestBase {
      */
     @LargeTest
     @Feature({"CopylessPaste"})
+    @DisabledTest(message = "crbug.com/713895")
     public void testNoMeta() throws InterruptedException, TimeoutException {
         loadUrl(mTestServer.getURL(NODATA_PAGE));
         mCallbackHelper.waitForCallback(0);