Do not release capture when clicking to open select box

content/browser/renderer_host/render_widget_host_view_aura.cc

Index: content/browser/renderer_host/render_widget_host_view_aura.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.cc b/content/browser/renderer_host/render_widget_host_view_aura.cc
index a54d860bc9e646cb9c5d0c9b52559e8042e2f17f..e2f3b6ebc1cc233445a0e633ad4403883f43ca2a 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -516,10 +516,8 @@ void RenderWidgetHostViewAura::InitAsPopup(
 
   SetBounds(bounds_in_screen);
   Show();
-#if !defined(OS_WIN) && !defined(OS_CHROMEOS)
-  if (NeedsInputGrab())
+  if (NeedsMouseCapture())
     window_->SetCapture();
-#endif
 
   event_filter_for_popup_exit_.reset(new EventFilterForPopupExit(this));
 }
@@ -1869,7 +1867,8 @@ void RenderWidgetHostViewAura::OnMouseEvent(ui::MouseEvent* event) {
       FinishImeCompositionSession();
       break;
     case ui::ET_MOUSE_RELEASED:
-      window_->ReleaseCapture();
+      if (!NeedsMouseCapture())
+        window_->ReleaseCapture();

[oshima, 2014/09/16 16:17:24]

who is closing the popup in this case?

[pkotwicz, 2014/09/17 02:27:58]

The popup is closed when
- The user clicks somewhere other the select box
RenderWidgetHostViewAura::ApplyEventFilterForPopupExit()
- The user selects an item in the select box
PopupListBox::handleMouseReleaseEvent()
- The web contents lose focus (e.g. Alt+Tab) WebViewImpl::setFocus()

Mouse capture is released when the popup is closed

       break;
     default:
       break;
@@ -2204,6 +2203,13 @@ bool RenderWidgetHostViewAura::NeedsInputGrab() {
   return popup_type_ == blink::WebPopupTypeSelect;
 }
 
+bool RenderWidgetHostViewAura::NeedsMouseCapture() {
+#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
+  return NeedsInputGrab();
+#endif
+  return false;
+}
+
 void RenderWidgetHostViewAura::FinishImeCompositionSession() {
   if (!has_composition_text_)
     return;