[Chrome Shell]Added code to regain focus on selection of any item from options menu.

chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java

Index: chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java
diff --git a/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java b/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java
index ab0f53324a519fb38e0ba3038ec04df633bd1ebb..b0d4385177f17f39affb61a29f434d83375cdd07 100644
--- a/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java
+++ b/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java
@@ -13,6 +13,7 @@ import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
+import android.view.ViewGroup;
 import android.widget.Toast;
 
 import org.chromium.base.ApiCompatibilityUtils;
@@ -291,6 +292,11 @@ public class ChromeShellActivity extends Activity implements AppMenuPropertiesDe
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         ChromeShellTab activeTab = getActiveTab();
+        ViewGroup containerView = activeTab.getContentViewCore().getContainerView();
+        if (activeTab != null && containerView.isFocusable()

[Bernhard Bauer, 2014/09/15 13:52:56]

You are accessing |activeTab| on the previous line. If it were null, you would
have crashed by now.

[ankit, 2014/09/15 14:19:50]

Sorry for such mistake.

+                && containerView.isFocusableInTouchMode()) {
+            containerView.requestFocus();
+        }
         switch (item.getItemId()) {
             case R.id.signin:
                 if (ChromeSigninController.get(this).isSignedIn()) {