Do not reset the content settings delegate's cookies when a network error occurred.

chrome/test/automation/tab_proxy.h

Index: chrome/test/automation/tab_proxy.h
diff --git a/chrome/test/automation/tab_proxy.h b/chrome/test/automation/tab_proxy.h
index 452a2ca8d8d0ee833eb0d88006b866eef29226d2..7c3ac2cad5d7610a3140f5a0c710c359a189c483 100644
--- a/chrome/test/automation/tab_proxy.h
+++ b/chrome/test/automation/tab_proxy.h
@@ -19,6 +19,7 @@
 #include "base/observer_list.h"
 #include "chrome/browser/download/save_package.h"
 #include "chrome/common/automation_constants.h"
+#include "chrome/common/content_settings_types.h"
 #include "chrome/common/page_type.h"
 #include "chrome/common/security_style.h"
 #include "chrome/test/automation/automation_handle_tracker.h"
@@ -247,6 +248,13 @@ class TabProxy : public AutomationResourceProxy,
   bool DeleteCookie(const GURL& url,
                     const std::string& name) WARN_UNUSED_RESULT;
 
+  // Checks whether the given |content_type| is blocked in the current tab.
+  bool IsContentBlocked(ContentSettingsType content_type,
+                        bool* is_blocked) WARN_UNUSED_RESULT;
+  // Checks whether the given |content_type| is accessed in the current tab.
+  bool IsContentAccessed(ContentSettingsType content_type,
+                         bool* is_accessed) WARN_UNUSED_RESULT;
+
   // Opens the collected cookies dialog for the current tab. This function can
   // be invoked on any valid tab.
   bool ShowCollectedCookiesDialog() WARN_UNUSED_RESULT;