Hide autocomplete popup when IME candidate window is open (on Windows).

chrome/browser/ui/views/autocomplete/autocomplete_popup_contents_view.cc

Index: chrome/browser/ui/views/autocomplete/autocomplete_popup_contents_view.cc
diff --git a/chrome/browser/ui/views/autocomplete/autocomplete_popup_contents_view.cc b/chrome/browser/ui/views/autocomplete/autocomplete_popup_contents_view.cc
index 07b3786722501071bcf90eebad430ffe4601a675..df2c996c64996104a7f57a91f408a80125bbb1a2 100644
--- a/chrome/browser/ui/views/autocomplete/autocomplete_popup_contents_view.cc
+++ b/chrome/browser/ui/views/autocomplete/autocomplete_popup_contents_view.cc
@@ -293,6 +293,12 @@ void AutocompletePopupContentsView::UpdatePopupAppearance() {
     return;
   }
 
+  if (omnibox_view_->ShouldHideAutocompletePopup()) {
+    if (popup_)
+      popup_->Hide();
+    return;
+  }
+
   // Update the match cached by each row, in the process of doing so make sure
   // we have enough row views.
   size_t child_rv_count = child_count();
@@ -355,6 +361,7 @@ void AutocompletePopupContentsView::UpdatePopupAppearance() {
     }
     popup_->Show();
   } else {
+    popup_->Show();
     // Animate the popup shrinking, but don't animate growing larger since that
     // would make the popup feel less responsive.
     start_bounds_ = GetWidget()->GetWindowScreenBounds();