diff --git a/atom/browser/common_web_contents_delegate.cc b/atom/browser/common_web_contents_delegate.cc
index 72a664f8cd00..1fd6f782de58 100644
--- a/atom/browser/common_web_contents_delegate.cc
+++ b/atom/browser/common_web_contents_delegate.cc
@@ -181,13 +181,6 @@ content::WebContents* CommonWebContentsDelegate::OpenURLFromTab(
   return source;
 }
 
-void CommonWebContentsDelegate::RequestToLockMouse(
-    content::WebContents* web_contents,
-    bool user_gesture,
-    bool last_unlocked_by_target) {
-  GetWebContents()->GotResponseToLockMouseRequest(true);
-}
-
 bool CommonWebContentsDelegate::CanOverscrollContent() const {
   return false;
 }
diff --git a/atom/browser/common_web_contents_delegate.h b/atom/browser/common_web_contents_delegate.h
index ee18f36660ee..83ef2850bd96 100644
--- a/atom/browser/common_web_contents_delegate.h
+++ b/atom/browser/common_web_contents_delegate.h
@@ -9,10 +9,10 @@
 #include <string>
 #include <vector>
 
-#include "brightray/browser/default_web_contents_delegate.h"
 #include "brightray/browser/inspectable_web_contents_impl.h"
 #include "brightray/browser/inspectable_web_contents_delegate.h"
 #include "brightray/browser/inspectable_web_contents_view_delegate.h"
+#include "content/public/browser/web_contents_delegate.h"
 
 namespace atom {
 
@@ -21,7 +21,7 @@ class NativeWindow;
 class WebDialogHelper;
 
 class CommonWebContentsDelegate
-    : public brightray::DefaultWebContentsDelegate,
+    : public content::WebContentsDelegate,
       public brightray::InspectableWebContentsDelegate,
       public brightray::InspectableWebContentsViewDelegate {
  public:
@@ -59,9 +59,6 @@ class CommonWebContentsDelegate
   content::WebContents* OpenURLFromTab(
       content::WebContents* source,
       const content::OpenURLParams& params) override;
-  void RequestToLockMouse(content::WebContents* web_contents,
-                          bool user_gesture,
-                          bool last_unlocked_by_target) override;
   bool CanOverscrollContent() const override;
   content::JavaScriptDialogManager* GetJavaScriptDialogManager(
       content::WebContents* source) override;
diff --git a/vendor/brightray b/vendor/brightray
index ea6011bc9607..2a5cd7178b64 160000
--- a/vendor/brightray
+++ b/vendor/brightray
@@ -1 +1 @@
-Subproject commit ea6011bc9607f321258bf93e510f56f031973230
+Subproject commit 2a5cd7178b641de91ca6eb0bca826fea588f923a