components: Create web_modal component.

chrome/browser/ui/views/constrained_window_views.cc

Index: chrome/browser/ui/views/constrained_window_views.cc
diff --git a/chrome/browser/ui/views/constrained_window_views.cc b/chrome/browser/ui/views/constrained_window_views.cc
index a35b2a06d617f316068053c5107b47db73be413c..aed4342a4f20e37217d8fad4586981073b1b9b17 100644
--- a/chrome/browser/ui/views/constrained_window_views.cc
+++ b/chrome/browser/ui/views/constrained_window_views.cc
@@ -15,9 +15,9 @@
 #include "chrome/browser/ui/toolbar/toolbar_model.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/browser/ui/views/theme_image_mapper.h"
-#include "chrome/browser/ui/web_contents_modal_dialog_host.h"
-#include "chrome/browser/ui/web_contents_modal_dialog_manager.h"
 #include "chrome/common/chrome_constants.h"
+#include "components/web_modal/web_contents_modal_dialog_host.h"
+#include "components/web_modal/web_contents_modal_dialog_manager.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
@@ -70,6 +70,8 @@
 #endif
 
 using base::TimeDelta;
+using web_modal::WebContentsModalDialogHost;
+using web_modal::WebContentsModalDialogHostObserver;
 
 namespace views {
 class ClientView;