Updated the VK Tray button to properly remove visual activated state.

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index 92616f6d1a2ee8cfdd554ffccaeaa5557eaab005..3ad8ddc0483522f1c83c95d2201b4c7550f2a09c 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -1126,6 +1126,8 @@ void Shell::InitKeyboard() {
     keyboard::KeyboardController::ResetInstance(
         new keyboard::KeyboardController(shell_delegate_->CreateKeyboardUI(),
                                          virtual_keyboard_controller_.get()));
+    for (auto& observer : shell_observers_)
+      observer.OnKeyboardControllerCreated();
   }
 }