Create automation test for the new translate infobar

chrome/android/java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java

Index: chrome/android/java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java b/chrome/android/java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java
index 3d6e37304e1d6cdc47a319f4eb806c7d105e66e6..720e7b4757fef4c7373d03fbdfb76b891d595040 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java
@@ -25,7 +25,7 @@ import org.chromium.ui.widget.Toast;
 /**
  * Java version of the compact translate infobar.
  */
-class TranslateCompactInfoBar extends InfoBar
+public class TranslateCompactInfoBar extends InfoBar
         implements TabLayout.OnTabSelectedListener, TranslateMenuHelper.TranslateMenuListener {
     public static final int TRANSLATING_INFOBAR = 1;
 
@@ -412,6 +412,22 @@ class TranslateCompactInfoBar extends InfoBar
         super.onStartedHiding();
     }
 
+    /**

[Marti Wong, 2017/05/30 01:29:15]

for TranslateCompactInfoBarTest to know if menu is showing.

[mdjones, 2017/05/30 16:50:41]

If these methods are exclusively for testing, consider adding *ForTesting to
them so its clear and no one is tempted to use them.

[Marti Wong, 2017/05/31 04:10:18]

Done.

+     * Returns true if overflow menu is showing.
+     */
+    public boolean isOverflowMenuShowing() {
+        if (mOverflowMenuHelper == null) return false;
+        return mOverflowMenuHelper.isShowing();
+    }
+
+    /**
+     * Returns true if language menu is showing.
+     */
+    public boolean isLanguageMenuShowing() {
+        if (mLanguageMenuHelper == null) return false;
+        return mLanguageMenuHelper.isShowing();
+    }
+
     private void createAndShowSnackbar(String title, int umaType, int actionId) {
         if (getSnackbarManager() == null) {
             // Directly apply menu option, if snackbar system is not working.