Add elevation to the managed mode navigation observer.

chrome/browser/managed_mode/managed_mode_navigation_observer.h

Index: chrome/browser/managed_mode/managed_mode_navigation_observer.h
diff --git a/chrome/browser/managed_mode/managed_mode_navigation_observer.h b/chrome/browser/managed_mode/managed_mode_navigation_observer.h
index 6e3ede6e7fe6f3f17880f91120d6dc034d7bb6bc..f1c5c0a472c245ddaff119bce344d213b5869daa 100644
--- a/chrome/browser/managed_mode/managed_mode_navigation_observer.h
+++ b/chrome/browser/managed_mode/managed_mode_navigation_observer.h
@@ -40,6 +40,12 @@ class ManagedModeNavigationObserver
   // observer state after adding the URLs.
   void AddSavedURLsToWhitelistAndClearState();
 
+  // Returns the elevation state for the corresponding WebContents.
+  bool is_elevated() const;
+
+  // Set the elevation state for the corresponding WebContents.
+  void set_elevated(bool is_elevated);
+
  private:
   // An observer can be in one of the following states:
   // - RECORDING_URLS_BEFORE_PREVIEW: This is the initial state when the user
@@ -126,6 +132,10 @@ class ManagedModeNavigationObserver
   std::set<GURL> navigated_urls_;
   GURL last_url_;
 
+  // The elevation state corresponding to the current WebContents.
+  // Will be set to true for non-managed users.
+  bool is_elevated_;
+
   int last_allowed_page_;
 
   DISALLOW_COPY_AND_ASSIGN(ManagedModeNavigationObserver);