Bug 1134192 - Prevent the options menu from opening in fullscreen mode. r=mfinkle

--HG--
extra : rebase_source : 3db64ab65d30f43b0d20294988cec676049f6bd1

mobile/android/base/BrowserApp.java

@@ -72,6 +72,7 @@ import org.mozilla.gecko.toolbar.AutocompleteHandler;
 import org.mozilla.gecko.toolbar.BrowserToolbar;
 import org.mozilla.gecko.toolbar.BrowserToolbar.TabEditingState;
 import org.mozilla.gecko.toolbar.ToolbarProgressView;
+import org.mozilla.gecko.util.ActivityUtils;
 import org.mozilla.gecko.util.Clipboard;
 import org.mozilla.gecko.util.EventCallback;
 import org.mozilla.gecko.util.GamepadUtils;
@@ -2885,6 +2886,10 @@ public class BrowserApp extends GeckoApp
             return;
         }
 
+        if (ActivityUtils.isFullScreen(this)) {
+            return;
+        }
+
         if (areTabsShown()) {
             mTabsPanel.showMenu();
             return;