Adds additional fields to web::NavigationItem.

ios/web/public/navigation_item.h

Index: ios/web/public/navigation_item.h
diff --git a/ios/web/public/navigation_item.h b/ios/web/public/navigation_item.h
index 59638f7ddf63183d1c30a47b56a9077f0ac6e868..8b2af55ac1b36e0c682ad20c135a9126fdcf7efe 100644
--- a/ios/web/public/navigation_item.h
+++ b/ios/web/public/navigation_item.h
@@ -6,11 +6,15 @@
 #define IOS_WEB_PUBLIC_NAVIGATION_ITEM_H_
 
 #include "base/strings/string16.h"
+#include "base/time/time.h"
 #include "ui/base/page_transition_types.h"
 
 class GURL;
 
 namespace web {
+struct FaviconStatus;
+struct Referrer;
+struct SSLStatus;
 
 // A NavigationItem is a data structure that captures all the information
 // required to recreate a browsing state. It represents one point in the
@@ -19,25 +23,83 @@ class NavigationItem {
  public:
   virtual ~NavigationItem() {}
 
+  // Page-related stuff --------------------------------------------------------
+
+  // A unique ID is preserved across commits and redirects, which means that
+  // sometimes a NavigationEntry's unique ID needs to be set (e.g. when
+  // creating a committed entry to correspond to a to-be-deleted pending entry,
+  // the pending entry's ID must be copied).
+  virtual int GetUniqueID() const = 0;
+
   // The actual URL of the page. For some about pages, this may be a scary
   // data: URL or something like that. Use GetVirtualURL() below for showing to
   // the user.
+  virtual void SetURL(const GURL& url) = 0;
   virtual const GURL& GetURL() const = 0;
 
-  // The URL that should be shown to the user. In most cases this is the same
-  // as the URL above, but in some case the underlying URL might not be
-  // suitable for display to the user.
+  // The referring URL. Can be empty.
+  virtual void SetReferrer(const Referrer& referrer) = 0;
+  virtual const Referrer& GetReferrer() const = 0;
+
+  // The virtual URL, when nonempty, will override the actual URL of the page
+  // when we display it to the user. This allows us to have nice and friendly
+  // URLs that the user sees for things like about: URLs, but actually feed
+  // the renderer a data URL that results in the content loading.
+  //
+  // GetVirtualURL() will return the URL to display to the user in all cases, so
+  // if there is no overridden display URL, it will return the actual one.
+  virtual void SetVirtualURL(const GURL& url) = 0;
   virtual const GURL& GetVirtualURL() const = 0;
 
   // The title as set by the page. This will be empty if there is no title set.
   // The caller is responsible for detecting when there is no title and
   // displaying the appropriate "Untitled" label if this is being displayed to
   // the user.
+  virtual void SetTitle(const base::string16& title) = 0;
   virtual const base::string16& GetTitle() const = 0;
 
+  // Describes the current page that the tab represents. This is the ID that the
+  // renderer generated for the page and is how we can tell new versus
+  // renavigations.
+  virtual void SetPageID(int page_id) = 0;
+  virtual int32 GetPageID() const = 0;
+
+  // Page-related helpers ------------------------------------------------------
+
+  // Returns the title to be displayed on the tab. This could be the title of
+  // the page if it is available or the URL. |languages| is the list of
+  // accpeted languages (e.g., prefs::kAcceptLanguages) or empty if proper
+  // URL formatting isn't needed (e.g., unit tests).
+  virtual const base::string16& GetTitleForDisplay(
+      const std::string& languages) const = 0;
+
+  // Tracking stuff ------------------------------------------------------------
+
   // The transition type indicates what the user did to move to this page from
   // the previous page.
+  virtual void SetTransitionType(ui::PageTransition transition_type) = 0;
   virtual ui::PageTransition GetTransitionType() const = 0;
+
+  // The favicon data and tracking information. See web::FaviconStatus.
+  virtual const FaviconStatus& GetFavicon() const = 0;
+  virtual FaviconStatus& GetFavicon() = 0;
+
+  // All the SSL flags and state. See web::SSLStatus.
+  virtual const SSLStatus& GetSSL() const = 0;
+  virtual SSLStatus& GetSSL() = 0;
+
+  // The time at which the last known local navigation has
+  // completed. (A navigation can be completed more than once if the
+  // page is reloaded.)
+  //
+  // If GetTimestamp() returns a null time, that means that either:
+  //
+  //   - this navigation hasn't completed yet;
+  //   - this navigation was restored and for some reason the
+  //     timestamp wasn't available;
+  //   - or this navigation was copied from a foreign session.
+  virtual void SetTimestamp(base::Time timestamp) = 0;
+  virtual base::Time GetTimestamp() const = 0;
 };
 
 }  // namespace web