Plumb the referrer throughout the OpenURL APIs....

chrome/browser/navigation_entry.h

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_NAVIGATION_ENTRY_H_
 #define CHROME_BROWSER_NAVIGATION_ENTRY_H_
 
 #include "base/basictypes.h"
 #include "base/scoped_ptr.h"
 #include "chrome/app/theme/theme_resources.h"
@@ skipping 149 matching lines @@
     // Copy and assignment is explicitly allowed for this class.
   };
 
   // ---------------------------------------------------------------------------
 
   explicit NavigationEntry(TabContentsType type);
   NavigationEntry(TabContentsType type,
                   SiteInstance* instance,
                   int page_id,
                   const GURL& url,
+                  const GURL& referrer,
                   const std::wstring& title,
                   PageTransition::Type transition_type);
   ~NavigationEntry() {
   }
 
   // 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,
@@ skipping 38 matching lines @@
   // data: URL or something like that. Use display_url() below for showing to
   // the user.
   void set_url(const GURL& url) {
     url_ = url;
     url_as_string_ = UTF8ToWide(url_.spec());
   }
   const GURL& url() const {
     return url_;
   }
 
+  // The referring URL. Can be empty.
+  void set_referrer(const GURL& referrer) {
+    referrer_ = referrer;
+  }
+  const GURL& referrer() const {
+    return referrer_;
+  }
+
   // The display 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.
   //
   // display_url() 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.
   void set_display_url(const GURL& url) {
     display_url_ = (url == url_) ? GURL() : url;
   }
@@ skipping 117 matching lines @@
   // later. If you add a new field that needs to be persisted you'll have to
   // update SessionService/TabRestoreService appropriately.
   // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
 
   // See the accessors above for descriptions.
   int unique_id_;
   TabContentsType tab_type_;
   scoped_refptr<SiteInstance> site_instance_;
   PageType page_type_;
   GURL url_;
+
+  // TODO(eroman): Add referrer to session restore.
+  // http://code.google.com/p/chromium/issues/detail?id=3774
+  GURL referrer_;
+
   std::wstring url_as_string_;
   GURL display_url_;
   std::wstring title_;
   FaviconStatus favicon_;
   std::string content_state_;
   int32 page_id_;
   SSLStatus ssl_;
   PageTransition::Type transition_type_;
   GURL user_typed_url_;
   bool has_post_data_;
   bool restored_;
 
   // Copy and assignment is explicitly allowed for this class.
 };
 
 #endif  // CHROME_BROWSER_NAVIGATION_ENTRY_H_