Keep reference view pressed while extension actions have a popup

ui/views/controls/button/custom_button.cc

Index: ui/views/controls/button/custom_button.cc
diff --git a/ui/views/controls/button/custom_button.cc b/ui/views/controls/button/custom_button.cc
index 1b5d1e82ffbd705b332ed9ce3057a60a8d2da995..2f29a6da67adddab77c636532e338f15b49f01bc 100644
--- a/ui/views/controls/button/custom_button.cc
+++ b/ui/views/controls/button/custom_button.cc
@@ -167,18 +167,18 @@ void CustomButton::OnMouseCaptureLost() {
 }
 
 void CustomButton::OnMouseEntered(const ui::MouseEvent& event) {
-  if (state_ != STATE_DISABLED)
+  if (state_ != STATE_DISABLED && ShouldRespondToMouseMovement())
     SetState(STATE_HOVERED);
 }
 
 void CustomButton::OnMouseExited(const ui::MouseEvent& event) {
   // Starting a drag results in a MouseExited, we need to ignore it.
-  if (state_ != STATE_DISABLED && !InDrag())
+  if (state_ != STATE_DISABLED && !InDrag() && ShouldRespondToMouseMovement())
     SetState(STATE_NORMAL);
 }
 
 void CustomButton::OnMouseMoved(const ui::MouseEvent& event) {
-  if (state_ != STATE_DISABLED)
+  if (state_ != STATE_DISABLED && ShouldRespondToMouseMovement())
     SetState(HitTestPoint(event.location()) ? STATE_HOVERED : STATE_NORMAL);
 }
 
@@ -328,6 +328,10 @@ CustomButton::CustomButton(ButtonListener* listener)
   hover_animation_->SetSlideDuration(kHoverFadeDurationMs);
 }
 
+bool CustomButton::ShouldRespondToMouseMovement() {
+  return true;
+}
+
 void CustomButton::StateChanged() {
 }