mojo leveldb: Get profile and leveldb connected to DOMStorageContext.

content/browser/dom_storage/dom_storage_context_wrapper.h

 // Copyright 2013 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 CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_
 #define CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_
 
 #include <map>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "components/filesystem/public/interfaces/directory.mojom.h"
+#include "components/filesystem/public/interfaces/file_system.mojom.h"
+#include "components/leveldb/public/interfaces/leveldb.mojom.h"
 #include "content/common/content_export.h"
 #include "content/common/storage_partition_service.mojom.h"
 #include "content/public/browser/dom_storage_context.h"
 
 namespace base {
 class FilePath;
 }
 
 namespace storage {
 class SpecialStoragePolicy;
 }
 
 namespace content {
 
 class DOMStorageContextImpl;
 class LevelDBWrapperImpl;
+class MojoAppConnection;
 
 // This is owned by Storage Partition and encapsulates all its dom storage
 // state.
 class CONTENT_EXPORT DOMStorageContextWrapper :
     NON_EXPORTED_BASE(public DOMStorageContext),
     public base::RefCountedThreadSafe<DOMStorageContextWrapper> {
  public:
   // If |data_path| is empty, nothing will be saved to disk.
   DOMStorageContextWrapper(
       const base::FilePath& data_path,
@@ skipping 31 matching lines @@
  private:
   friend class DOMStorageMessageFilter;  // for access to context()
   friend class SessionStorageNamespaceImpl;  // ditto
   friend class base::RefCountedThreadSafe<DOMStorageContextWrapper>;
 
   ~DOMStorageContextWrapper() override;
   DOMStorageContextImpl* context() const { return context_.get(); }
 
   void LevelDBWrapperImplHasNoBindings(const std::string& origin);
 
+  // Part of our asynchronous directory opening called from OpenLocalStorage().
+  void OnDirectoryOpened(filesystem::FileError err);
+  void OnDatabaseOpened(leveldb::DatabaseError status);
+
+  // The (possibly delayed) implementation of OpenLocalStorage(). Can be called
+  // directly from that function, or through |on_database_open_callbacks_|.
+  void BindLocalStorage(
+      const mojo::String& origin,
+      LevelDBObserverPtr observer,
+      mojo::InterfaceRequest<LevelDBWrapper> request);
+
   // Used for mojo-based LocalStorage implementation (behind
   // --mojo-local-storage for now). Maps between an origin and its prefixed
   // LevelDB view.
   std::map<std::string, scoped_ptr<LevelDBWrapperImpl>> level_db_wrappers_;
 
   scoped_refptr<DOMStorageContextImpl> context_;
 
+  enum ConnectionState {
+    NO_CONNECTION,
+    CONNECITON_IN_PROGRESS,
+    CONNECTED
+  } connection_state_;
+
+  scoped_ptr<MojoAppConnection> file_system_connection_;
+  filesystem::FileSystemPtr file_system_;
+  filesystem::DirectoryPtr directory_;
+
+  scoped_ptr<MojoAppConnection> leveldb_connection_;
+  leveldb::LevelDBServicePtr leveldb_;
+  leveldb::LevelDBDatabasePtr database_;
+
+  std::vector<base::Closure> on_database_opened_callbacks_;
+
+  base::WeakPtrFactory<DOMStorageContextWrapper> weak_ptr_factory_;
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(DOMStorageContextWrapper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_WRAPPER_H_