Add test for ChromeVox keyboard commands.

This is just a couple of quick sanity checks to prevent future regressions
like the one in the linked bug. It tests both a Search+Shift shortcut and
the corresponding Prefix Key shortcut.

Adds support for sending the meta modifier key in
aura/x11 tests.

BUG=404470

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=291547

Committed: https://chromium.googlesource.com/chromium/src/+/8cab2737f1cb6e6011b0946f6bef5027868602c0

Review URL: https://codereview.chromium.org/490443002

Cr-Commit-Position: refs/heads/master@{#293687}

1 files changed, 4 insertions, 2 deletions

diff --git a/ui/aura/test/ui_controls_factory_aurax11.cc b/ui/aura/test/ui_controls_factory_aurax11.cc
index 06a9439..383d073 100644
--- a/ui/aura/test/ui_controls_factory_aurax11.cc
+++ b/ui/aura/test/ui_controls_factory_aurax11.cc
@@ -56,7 +56,6 @@ class UIControlsX11 : public UIControlsAura {
                             bool shift,
                             bool alt,
                             bool command) OVERRIDE {
-    DCHECK(!command);  // No command key on Aura
     return SendKeyPressNotifyWhenDone(
         window, key, control, shift, alt, command, base::Closure());
   }
@@ -68,7 +67,6 @@ class UIControlsX11 : public UIControlsAura {
       bool alt,
       bool command,
       const base::Closure& closure) OVERRIDE {
-    DCHECK(!command);  // No command key on Aura
     XEvent xevent = {0};
     xevent.xkey.type = KeyPress;
     if (control)
@@ -77,6 +75,8 @@ class UIControlsX11 : public UIControlsAura {
       SetKeycodeAndSendThenMask(&xevent, XK_Shift_L, ShiftMask);
     if (alt)
       SetKeycodeAndSendThenMask(&xevent, XK_Alt_L, Mod1Mask);
+    if (command)
+      SetKeycodeAndSendThenMask(&xevent, XK_Super_L, Mod4Mask);
     xevent.xkey.keycode =
         XKeysymToKeycode(gfx::GetXDisplay(),
                          ui::XKeysymForWindowsKeyCode(key, shift));
@@ -91,6 +91,8 @@ class UIControlsX11 : public UIControlsAura {
       UnmaskAndSetKeycodeThenSend(&xevent, ShiftMask, XK_Shift_L);
     if (control)
       UnmaskAndSetKeycodeThenSend(&xevent, ControlMask, XK_Control_L);
+    if (command)
+      UnmaskAndSetKeycodeThenSend(&xevent, Mod4Mask, XK_Super_L);
     DCHECK(!xevent.xkey.state);
     RunClosureAfterAllPendingUIEvents(closure);
     return true;