mojo leveldb: Get profile and leveldb connected to DOMStorageContext.

components/filesystem/file_system_app.h

Index: components/filesystem/file_system_app.h
diff --git a/components/filesystem/file_system_app.h b/components/filesystem/file_system_app.h
index 3279415e507608ed83408d085ffebde572b362dd..1c659ef8e6ac8187a97c2471f359006e5f11d389 100644
--- a/components/filesystem/file_system_app.h
+++ b/components/filesystem/file_system_app.h
@@ -20,16 +20,16 @@ class Shell;
 
 namespace filesystem {
 
+scoped_ptr<mojo::ShellClient> CreateFileSystemApp(
+    const base::FilePath& persistent_dir);
+
 class FileSystemApp : public mojo::ShellClient,
                       public mojo::InterfaceFactory<FileSystem> {
  public:
-  FileSystemApp();
+  FileSystemApp(const base::FilePath& persistent_dir);
   ~FileSystemApp() override;
 
  private:
-  // Gets the system specific toplevel profile directory.
-  static base::FilePath GetUserDataDir();
-
   // |mojo::ShellClient| override:
   void Initialize(mojo::Shell* shell, const std::string& url,
                   uint32_t id, uint32_t user_id) override;
@@ -44,6 +44,8 @@ class FileSystemApp : public mojo::ShellClient,
 
   scoped_ptr<LockTable> lock_table_;
 
+  base::FilePath persistent_dir_;
+
   DISALLOW_COPY_AND_ASSIGN(FileSystemApp);
 };