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 71e94598f31ed111a5702a9503820edbb5972978..27c3316f913862df42900a8669e1515d2e88a842 100644
--- a/chrome/browser/ui/extensions/shell_window.cc
+++ b/chrome/browser/ui/extensions/shell_window.cc
@@ -281,6 +281,13 @@ void ShellWindow::HandleKeyboardEvent(
   native_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();