Remove native VK window height logic and wait for resizeTo to setup VK window height

ash/root_window_controller_unittest.cc

Index: ash/root_window_controller_unittest.cc
diff --git a/ash/root_window_controller_unittest.cc b/ash/root_window_controller_unittest.cc
index 69aad6b7d4f9f9b1520813933fdf2611e598bb62..033adc7784483114c43f348e6f77eb0611dd9131 100644
--- a/ash/root_window_controller_unittest.cc
+++ b/ash/root_window_controller_unittest.cc
@@ -702,6 +702,12 @@ TEST_F(VirtualKeyboardRootWindowControllerTest, RestoreWorkspaceAfterLogin) {
   aura::Window* keyboard_window = controller->proxy()->GetKeyboardWindow();
   keyboard_container->AddChild(keyboard_window);
   keyboard_window->set_owned_by_parent(false);
+  gfx::Rect window_bounds = keyboard_container->bounds();
+  keyboard_window->SetBounds(gfx::Rect(
+      window_bounds.x(),
+      window_bounds.y() + window_bounds.height() - 100,
+      window_bounds.width(),
+      100));
   keyboard_window->Show();
 
   gfx::Rect before = ash::Shell::GetScreen()->GetPrimaryDisplay().work_area();
@@ -731,7 +737,12 @@ TEST_F(VirtualKeyboardRootWindowControllerTest, ClickWithActiveModalDialog) {
       proxy()->GetKeyboardWindow();
   keyboard_container->AddChild(keyboard_window);
   keyboard_window->set_owned_by_parent(false);
-  keyboard_window->SetBounds(gfx::Rect());
+  gfx::Rect window_bounds = keyboard_container->bounds();
+  keyboard_window->SetBounds(gfx::Rect(
+      window_bounds.x(),
+      window_bounds.y() + window_bounds.height() - 100,
+      window_bounds.width(),
+      100));
   keyboard_window->Show();
 
   ui::test::TestEventHandler* handler = new ui::test::TestEventHandler;