Bug 906670 - Can sometimes accessibility focus hidden content from about:home. r=lucasr

mobile/android/base/BrowserApp.java

@@ -1441,9 +1441,11 @@ abstract public class BrowserApp extends GeckoApp
 
     void filterEditingMode(String searchTerm, AutocompleteHandler handler) {
         if (TextUtils.isEmpty(searchTerm)) {
+            mHomePager.setVisibility(View.VISIBLE);
             hideBrowserSearch();
         } else {
             showBrowserSearch();
+            mHomePager.setVisibility(View.INVISIBLE);
             mBrowserSearch.filter(searchTerm, handler);
         }
     }

mobile/android/base/GeckoAccessibility.java

@@ -301,7 +301,7 @@ public class GeckoAccessibility {
                             default:
                                 info.setParent(host);
                                 info.setSource(host, virtualDescendantId);
-                                info.setVisibleToUser(true);
+                                info.setVisibleToUser(host.isFocused());
                                 info.setPackageName(GeckoAppShell.getContext().getPackageName());
                                 info.setClassName(host.getClass().getName());
                                 info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);