screenshot disabling policy

chrome/browser/extensions/api/tabs/tabs.h

Index: chrome/browser/extensions/api/tabs/tabs.h
diff --git a/chrome/browser/extensions/api/tabs/tabs.h b/chrome/browser/extensions/api/tabs/tabs.h
index c4a1b8d2b56de2bb54eec8c115e4aa8085f0f2d9..e39f59ac32f6bc7a35353c88ee58e0fb415ebfce 100644
--- a/chrome/browser/extensions/api/tabs/tabs.h
+++ b/chrome/browser/extensions/api/tabs/tabs.h
@@ -16,6 +16,7 @@
 
 class BackingStore;
 class GURL;
+class PrefService;
 class SkBitmap;
 class TabContents;
 
@@ -165,6 +166,9 @@ class DetectTabLanguageFunction : public AsyncExtensionFunction,
 };
 class CaptureVisibleTabFunction : public AsyncExtensionFunction,
                                   public content::NotificationObserver {
+ public:
+  static void RegisterUserPrefs(PrefService* service);
+
  protected:
   enum ImageFormat {
     FORMAT_JPEG,