Mark flaky chrome_public tests with @RetryOnFailure Batch 5

chrome/android/javatests/src/org/chromium/chrome/browser/toolbar/ToolbarModelTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/toolbar/ToolbarModelTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/toolbar/ToolbarModelTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/toolbar/ToolbarModelTest.java
index 8e57aac3de71b8977f1f0535fb8c8fb0c7de586d..6e641c90d32c3cb7f0efd5f868a0807bee49f1db 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/toolbar/ToolbarModelTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/toolbar/ToolbarModelTest.java
@@ -9,6 +9,7 @@ import android.test.suitebuilder.annotation.MediumTest;
 import junit.framework.Assert;
 
 import org.chromium.base.test.util.Feature;
+import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeTabbedActivity;
 import org.chromium.chrome.browser.tab.Tab;
@@ -31,6 +32,7 @@ public class ToolbarModelTest extends ChromeTabbedActivityTestBase {
      */
     @Feature({"Android-Toolbar"})
     @MediumTest
+    @RetryOnFailure
     public void testClosingLastTabReflectedInModel() throws InterruptedException {
         assertNotSame("No current tab", Tab.INVALID_TAB_ID,
                 getCurrentTabId(getActivity()));