MHTMLGenerationManager - add param

components/offline_pages/core/offline_page_archiver.h

Index: components/offline_pages/core/offline_page_archiver.h
diff --git a/components/offline_pages/core/offline_page_archiver.h b/components/offline_pages/core/offline_page_archiver.h
index cfada7b4dea1fe2e2136d33d96ec321c0a54ef14..30dd2945554810e3aa87cb19ea925c9ba4f62671 100644
--- a/components/offline_pages/core/offline_page_archiver.h
+++ b/components/offline_pages/core/offline_page_archiver.h
@@ -56,10 +56,14 @@ class OfflinePageArchiver {
 
   // Describes the parameters to control how to create an archive.
   struct CreateArchiveParams {
-    CreateArchiveParams() : remove_popup_overlay(false) {}
+    CreateArchiveParams()
+        : remove_popup_overlay(false), use_page_problem_detectors(false) {}
 
     // Whether to remove popup overlay that obstructs viewing normal content.
     bool remove_popup_overlay;
+
+    // Run page problem detectors while generating MTHML if true.
+    bool use_page_problem_detectors;
   };
 
   typedef base::Callback<void(OfflinePageArchiver* /* archiver */,