Revert of Keep virtual keyboard visibility the same after enable an IME in a different extension

ui/keyboard/keyboard_layout_manager.cc

Index: ui/keyboard/keyboard_layout_manager.cc
diff --git a/ui/keyboard/keyboard_layout_manager.cc b/ui/keyboard/keyboard_layout_manager.cc
index c54f78ceeefebd14b5c6f780d55b4c1903122bb2..9946060cd9668396af686bca34061953533bc39b 100644
--- a/ui/keyboard/keyboard_layout_manager.cc
+++ b/ui/keyboard/keyboard_layout_manager.cc
@@ -49,11 +49,11 @@
 
   gfx::Rect old_bounds = child->bounds();
   SetChildBoundsDirect(child, requested_bounds);
-  if (old_bounds.height() == 0 && child->bounds().height() != 0 &&
-      controller_->show_on_resize()) {
-    // The window height is set to 0 initially or before switch to an IME in a
-    // different extension. Virtual keyboard window may wait for this bounds
-    // change to correctly animate in.
+  if (old_bounds.height() == 0 && child->bounds().height() != 0) {
+    // The window height is set to 0 initially. If the height of |old_bounds| is
+    // 0 and the new bounds is not 0, it probably means window.resizeTo is
+    // called to set the window height. We should try to show keyboard again in
+    // case the show keyboard request is called before the height is set.
     controller_->ShowKeyboard(false);
   } else {
     // We need to send out this notification only if keyboard is visible since