Removed CRWSessionEntry unittests.

ios/web/navigation/crw_session_entry.mm

 // Copyright 2012 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.
 
 #import "ios/web/navigation/crw_session_entry.h"
 
 #include <stdint.h>
 
 #include <memory>
 
@@ skipping 32 matching lines @@
 // TODO(ios): Shall we overwrite EqualTo:?
 
 - (instancetype)copyWithZone:(NSZone*)zone {
   CRWSessionEntry* copy = [[[self class] alloc] init];
   copy->_navigationItem.reset(
       new web::NavigationItemImpl(*_navigationItem.get()));
   return copy;
 }
 
 - (NSString*)description {
-  return [NSString
-      stringWithFormat:
-          @"url:%@ originalurl:%@ title:%@ transition:%d displayState:%@ "
-          @"userAgentType:%s",
-          base::SysUTF8ToNSString(_navigationItem->GetURL().spec()),
-          base::SysUTF8ToNSString(
-              _navigationItem->GetOriginalRequestURL().spec()),
-          base::SysUTF16ToNSString(_navigationItem->GetTitle()),
-          _navigationItem->GetTransitionType(),
-          _navigationItem->GetPageDisplayState().GetDescription(),
-          web::GetUserAgentTypeDescription(_navigationItem->GetUserAgentType())
-              .c_str()];
+#ifndef NDEBUG
+  return _navigationItem->GetDescription();
+#else
+  return [super description];
+#endif
 }
 
 - (web::NavigationItem*)navigationItem {
   return _navigationItem.get();
 }
 
 - (web::NavigationItemImpl*)navigationItemImpl {
   return _navigationItem.get();
 }
 
 @end