Clear cookie related settings at the beginning of a navigation instead of at the end.

chrome/browser/tab_contents/tab_specific_content_settings.h

Index: chrome/browser/tab_contents/tab_specific_content_settings.h
diff --git a/chrome/browser/tab_contents/tab_specific_content_settings.h b/chrome/browser/tab_contents/tab_specific_content_settings.h
index 82976c423d5a7e896b6495bb6b62f063c4eac746..042afc71315c2e96ce0843ab46ec76cbe5a43c8f 100644
--- a/chrome/browser/tab_contents/tab_specific_content_settings.h
+++ b/chrome/browser/tab_contents/tab_specific_content_settings.h
@@ -42,8 +42,12 @@ class TabSpecificContentSettings
 
   virtual ~TabSpecificContentSettings() {}
 
-  // Resets the |content_blocked_| array and stored cookies.
-  void ClearBlockedContentSettings();
+  // Resets the |content_blocked_| and |content_accessed_| arrays, except for
+  // CONTENT_SETTINGS_TYPE_COOKIES related information.
+  void ClearBlockedContentSettingsExceptForCookies();
+
+  // Resets all cookies related information.
+  void ClearCookieSpecificContentSettings();
 
   // Changes the |content_blocked_| entry for popups.
   void SetPopupsBlocked(bool blocked);