Re-land: Implement ChromeVox Next menus.

chrome/browser/chromeos/accessibility/chromevox_panel.cc

Index: chrome/browser/chromeos/accessibility/chromevox_panel.cc
diff --git a/chrome/browser/chromeos/accessibility/chromevox_panel.cc b/chrome/browser/chromeos/accessibility/chromevox_panel.cc
index 740972d12347e3c466ffcc72780e63e3b187ea34..01c98055d5b715e3ac94ec776a397e9793dd55cb 100644
--- a/chrome/browser/chromeos/accessibility/chromevox_panel.cc
+++ b/chrome/browser/chromeos/accessibility/chromevox_panel.cc
@@ -111,10 +111,14 @@ void ChromeVoxPanel::DidFirstVisuallyNonEmptyPaint() {
 
 void ChromeVoxPanel::EnterFullscreen() {
   fullscreen_ = true;
+  widget_->widget_delegate()->set_can_activate(true);
+  widget_->Activate();
+  web_view_->RequestFocus();
   UpdateWidgetBounds();
 }
 
 void ChromeVoxPanel::ExitFullscreen() {
+  widget_->widget_delegate()->set_can_activate(false);
   fullscreen_ = false;
   UpdateWidgetBounds();
 }