This CL demonstrates some weird browser_test behavior on linux_chromeos.

webkit/dom_storage/dom_storage_area.h

 // Copyright (c) 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.
 
 #ifndef WEBKIT_DOM_STORAGE_DOM_STORAGE_AREA_H_
 #define WEBKIT_DOM_STORAGE_DOM_STORAGE_AREA_H_
 
 #include "base/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/nullable_string16.h"
 #include "base/string16.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/dom_storage/dom_storage_types.h"
 
 namespace dom_storage {
 
 class DomStorageDatabaseAdapter;
 class DomStorageMap;
 class DomStorageTaskRunner;
 class SessionStorageDatabase;
 
 // Container for a per-origin Map of key/value pairs potentially
 // backed by storage on disk and lazily commits changes to disk.
 // See class comments for DomStorageContext for a larger overview.
-class DomStorageArea
+class __attribute__((visibility("default"))) DomStorageArea
     : public base::RefCountedThreadSafe<DomStorageArea> {
 
  public:
   static const FilePath::CharType kDatabaseFileExtension[];
   static FilePath DatabaseFileNameFromOrigin(const GURL& origin);
   static GURL OriginFromDatabaseFileName(const FilePath& file_name);
 
   // Local storage. Backed on disk if directory is nonempty.
   DomStorageArea(const GURL& origin,
                  const FilePath& directory,
@@ skipping 33 matching lines @@
   // Frees up memory when possible. Typically, this method returns
   // the object to its just constructed state, however if uncommitted
   // changes are pending, it does nothing.
   void PurgeMemory();
 
   // Schedules the commit of any unsaved changes and enters a
   // shutdown state such that the value getters and setters will
   // no longer do anything.
   void Shutdown();
 
+  static int set_me;
+
  private:
   friend class DomStorageAreaTest;
   FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, DomStorageAreaBasics);
   FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, BackingDatabaseOpened);
   FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, TestDatabaseFilePath);
   FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, CommitTasks);
   FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, CommitChangesAtShutdown);
   FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, DeleteOrigin);
   FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, PurgeMemory);
   FRIEND_TEST_ALL_PREFIXES(DomStorageContextTest, PersistentIds);
@@ skipping 33 matching lines @@
   scoped_refptr<SessionStorageDatabase> session_storage_backing_;
   bool is_initial_import_done_;
   bool is_shutdown_;
   scoped_ptr<CommitBatch> commit_batch_;
   int commit_batches_in_flight_;
 };
 
 }  // namespace dom_storage
 
 #endif  // WEBKIT_DOM_STORAGE_DOM_STORAGE_AREA_H_