Fix a bug that viewed Omnibox hint when hint loses focus

chrome/browser/ui/views/omnibox/omnibox_view_views.cc

Index: chrome/browser/ui/views/omnibox/omnibox_view_views.cc
diff --git a/chrome/browser/ui/views/omnibox/omnibox_view_views.cc b/chrome/browser/ui/views/omnibox/omnibox_view_views.cc
index 0f22b6ee6e9593c66759e2e7ab82f406c59e5b0f..c59c552599b666186a26238a7008e7060286eb8b 100644
--- a/chrome/browser/ui/views/omnibox/omnibox_view_views.cc
+++ b/chrome/browser/ui/views/omnibox/omnibox_view_views.cc
@@ -774,6 +774,10 @@ void OmniboxViewViews::OnFocus() {
     SelectRange(saved_selection_for_focus_change_);
     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
   }
+
+  // Re-focusing, keyword hint is visible.
+  if (model()->is_keyword_hint())
+    location_bar_view_->Layout();
 }
 
 void OmniboxViewViews::OnBlur() {
@@ -801,6 +805,10 @@ void OmniboxViewViews::OnBlur() {
 
   // The location bar needs to repaint without a focus ring.
   location_bar_view_->SchedulePaint();
+
+  // Hint is being visible. If losing focus, Keyword hint is invisible.

[Peter Kasting, 2017/02/25 05:23:09]

Nit: I would say "Focus changes can affect the visibility of any keyword hint."

I'd use the same comment above as well.

+  if (model()->is_keyword_hint())
+    location_bar_view_->Layout();

[Peter Kasting, 2017/02/25 05:23:09]

This block should go above the SchedulePaint() call, so layout happens before
painting could potentially happen.

 }
 
 bool OmniboxViewViews::IsCommandIdEnabled(int command_id) const {