Fixes stale hover or ink ripple visuals when dragging over extension buttons

chrome/browser/ui/views/toolbar/toolbar_action_view.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/toolbar/toolbar_action_view.h"
 
 #include <string>
 
 #include "base/auto_reset.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 213 matching lines @@
                    ToolbarActionsBar::IconHeight());
 }
 
 bool ToolbarActionView::OnMousePressed(const ui::MouseEvent& event) {
   // views::MenuButton actions are only triggered by left mouse clicks.
   if (event.IsOnlyLeftMouseButton())
     ink_drop_delegate()->OnAction(views::InkDropState::ACTION_PENDING);
   return MenuButton::OnMousePressed(event);
 }
 
+void ToolbarActionView::OnMouseCaptureLost() {
+  ink_drop_delegate()->OnAction(views::InkDropState::HIDDEN);

[Devlin, 2015/12/10 22:18:22]

Why are these in ToolbarActionView, instead of CustomButton?  Won't every button
behave the same?

[varkha, 2015/12/11 02:09:43]

Done.

+}
+
 void ToolbarActionView::OnGestureEvent(ui::GestureEvent* event) {
   // While the dropdown menu is showing, the button should not handle gestures.
   if (menu_)
     event->StopPropagation();
   else
     MenuButton::OnGestureEvent(event);
 }
 
 void ToolbarActionView::OnDragDone() {
   views::MenuButton::OnDragDone();
@@ skipping 142 matching lines @@
     if (menu_controller->in_nested_run()) {
       // There is another menu showing. Close the outermost menu (since we are
       // shown in the same menu, we don't want to close the whole thing).
       menu_controller->Cancel(views::MenuController::EXIT_OUTERMOST);
       return true;
     }
   }
 
   return false;
 }