Enable Pointer Lock for packaged apps using ShellWindow.

chrome/browser/ui/extensions/shell_window.cc

Index: chrome/browser/ui/extensions/shell_window.cc
diff --git a/chrome/browser/ui/extensions/shell_window.cc b/chrome/browser/ui/extensions/shell_window.cc
index 1eb23bb4b883063a011dfe3129c752708dbaa7a2..cf1a3c9a4d58c9fc2faf3c694d6e90ffa491c914 100644
--- a/chrome/browser/ui/extensions/shell_window.cc
+++ b/chrome/browser/ui/extensions/shell_window.cc
@@ -302,6 +302,13 @@ void ShellWindow::HandleKeyboardEvent(
   native_app_window_->HandleKeyboardEvent(event);
 }
 
+void ShellWindow::RequestToLockMouse(WebContents* web_contents,
+                                     bool user_gesture,
+                                     bool last_unlocked_by_target) {
+  web_contents->GotResponseToLockMouseRequest(
+      extension_->HasAPIPermission(extensions::APIPermission::kPointerLock));
+}
+
 void ShellWindow::OnNativeClose() {
   extensions::ShellWindowRegistry::Get(profile_)->RemoveShellWindow(this);
   content::RenderViewHost* rvh = web_contents_->GetRenderViewHost();