Revert of Revert of Add test for ChromeVox keyboard commands.

ui/aura/test/ui_controls_factory_ozone.cc

Index: ui/aura/test/ui_controls_factory_ozone.cc
diff --git a/ui/aura/test/ui_controls_factory_ozone.cc b/ui/aura/test/ui_controls_factory_ozone.cc
index 5179360e6fbe4754ac1ab3f1e6b51f4c3188ce8f..4c5330c6159600651b5f19d356a00523b60cfa10 100644
--- a/ui/aura/test/ui_controls_factory_ozone.cc
+++ b/ui/aura/test/ui_controls_factory_ozone.cc
@@ -36,8 +36,6 @@
       bool alt,
       bool command,
       const base::Closure& closure) OVERRIDE {
-    DCHECK(!command);  // No command key on Aura
-
     int flags = button_down_mask_;
 
     if (control) {
@@ -55,6 +53,11 @@
       PostKeyEvent(ui::ET_KEY_PRESSED, ui::VKEY_MENU, flags);
     }
 
+    if (command) {
+      flags |= ui::EF_COMMAND_DOWN;
+      PostKeyEvent(ui::ET_KEY_PRESSED, ui::VKEY_LWIN, flags);
+    }
+
     PostKeyEvent(ui::ET_KEY_PRESSED, key, flags);
     PostKeyEvent(ui::ET_KEY_RELEASED, key, flags);
 
@@ -71,6 +74,11 @@
     if (control) {
       flags &= ~ui::EF_CONTROL_DOWN;
       PostKeyEvent(ui::ET_KEY_RELEASED, ui::VKEY_CONTROL, flags);
+    }
+
+    if (command) {
+      flags &= ~ui::EF_COMMAND_DOWN;
+      PostKeyEvent(ui::ET_KEY_RELEASED, ui::VKEY_LWIN, flags);
     }
 
     RunClosureAfterAllPendingUIEvents(closure);