Load application manifests from resources

mojo/services/catalog/reader.h

 // Copyright 2016 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 MOJO_SERVICES_CATALOG_READER_H_
 #define MOJO_SERVICES_CATALOG_READER_H_
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/strings/string_piece.h"
 #include "base/values.h"
 
 namespace base {
 class TaskRunner;
 }
 
 namespace catalog {
 
 class Entry;
 
 // Encapsulates manifest reading.
 class Reader {
  public:
   using ReadManifestCallback =
       base::Callback<void(scoped_ptr<Entry> entry)>;
 
   // Loads manifests relative to |package_path|. Performs file operations on
   // |file_task_runner|.
   Reader(const base::FilePath& package_path,
          base::TaskRunner* file_task_runner);
   ~Reader();
 
   // Attempts to load a manifest for |name|, and returns an Entry built from the
   // metadata it contains via |callback|.
   void Read(const std::string& name,
             const ReadManifestCallback& callback);
 
+  // Parses manifest contents and returns an Entry built from the metadata it
+  // contains.
+  scoped_ptr<Entry> Parse(const base::StringPiece& manifest_contents);
+
  private:
   // Construct a manifest path for the application named |name| within
   // |package_path_|.
   base::FilePath GetManifestPath(const std::string& name) const;
 
   base::FilePath package_path_;
   base::TaskRunner* file_task_runner_;
   base::WeakPtrFactory<Reader> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Reader);
 };
 
 }  // namespace catalog
 
 #endif  // MOJO_SERVICES_CATALOG_READER_H_