Add a flag to enable open in window for hosted apps on Mac.

extensions/browser/api/management/management_api_delegate.h

Index: extensions/browser/api/management/management_api_delegate.h
diff --git a/extensions/browser/api/management/management_api_delegate.h b/extensions/browser/api/management/management_api_delegate.h
index c6db8517ef7f1e08378fb3f96fdc66cf30899100..f7b15a71e9257174e093df3957e8b3287853b37d 100644
--- a/extensions/browser/api/management/management_api_delegate.h
+++ b/extensions/browser/api/management/management_api_delegate.h
@@ -58,6 +58,10 @@ class ManagementAPIDelegate {
   // chrome.
   virtual bool IsNewBookmarkAppsEnabled() const = 0;
 
+  // Forwards the call to extensions::util::CanHostedAppsOpenInWindows in
+  // chrome.
+  virtual bool CanHostedAppsOpenInWindows() const = 0;
+
   // Forwards the call to AppLaunchInfo::GetFullLaunchURL in chrome.
   virtual GURL GetFullLaunchURL(const Extension* extension) const = 0;