Make it possible to hide "most visited" on nnnnnnntp

chrome/browser/dom_ui/shown_sections_handler.h

Index: chrome/browser/dom_ui/shown_sections_handler.h
diff --git a/chrome/browser/dom_ui/shown_sections_handler.h b/chrome/browser/dom_ui/shown_sections_handler.h
index a281346104c8b28b5117d8e0eeac5d0b5f5f596f..be077354a34ee5a09cfb62b597338710c8729a8d 100644
--- a/chrome/browser/dom_ui/shown_sections_handler.h
+++ b/chrome/browser/dom_ui/shown_sections_handler.h
@@ -18,8 +18,16 @@ class PrefService;
 // Currently, only the THUMB and APPS sections can be toggled by the user. Other
 // sections are shown automatically if they have data, and hidden otherwise.
 enum Section {
-  THUMB = 1,
-  APPS = 64
+  // If one of these is set, the corresponding section shows large thumbnails,
+  // else it shows only a small overview list.
+  THUMB = 1 << 0,
+  APPS = 1 << 6,
+
+  // If one of these is set, then the corresponding section is shown minimized
+  // at the bottom of the NTP and no data is directly visible on the NTP.
+  MINIMIZED_THUMB = 1 << (0 + 16),
+  MINIMIZED_RECENT = 1 << (2 + 16),
+  MINIMIZED_APPS = 1 << (6 + 16),
 };
 
 class ShownSectionsHandler : public DOMMessageHandler,