[ChromeOS] Show autofill popup after keyboard (if any) is shown.

ui/base/ime/input_method_base.cc

Index: ui/base/ime/input_method_base.cc
diff --git a/ui/base/ime/input_method_base.cc b/ui/base/ime/input_method_base.cc
index 0dca37870e5ed3c2fc8e4a6645db78ed1db7742b..89b50fb4af179766c8180be659a4d67a08750f7e 100644
--- a/ui/base/ime/input_method_base.cc
+++ b/ui/base/ime/input_method_base.cc
@@ -94,6 +94,15 @@ void InputMethodBase::ShowImeIfNeeded() {
   FOR_EACH_OBSERVER(InputMethodObserver, observer_list_, OnShowImeIfNeeded());
 }
 
+bool InputMethodBase::SupportsOnScreenKeyboard() const {
+  return false;
+}
+
+void InputMethodBase::NotifyKeyboardBoundsUnchanged() {
+  FOR_EACH_OBSERVER(InputMethodObserver, observer_list_,
+                    OnKeyboardBoundsUnchanged());
+}
+
 void InputMethodBase::AddObserver(InputMethodObserver* observer) {
   observer_list_.AddObserver(observer);
 }