mediaview: IPC definitions to watch for document changes.

components/arc/test/fake_file_system_instance.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 COMPONENTS_ARC_TEST_FAKE_FILE_SYSTEM_INSTANCE_H_
 #define COMPONENTS_ARC_TEST_FAKE_FILE_SYSTEM_INSTANCE_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 91 matching lines @@
   FakeFileSystemInstance();
   ~FakeFileSystemInstance() override;
 
   // Adds a file accessible by content URL based methods.
   void AddFile(const File& file);
 
   // Adds a document accessible by document provider based methods.
   void AddDocument(const Document& document);
 
   // mojom::FileSystemInstance:
+  void AddWatcher(const std::string& authority,
+                  const std::string& document_id,
+                  const AddWatcherCallback& callback) override;
   void GetChildDocuments(const std::string& authority,
                          const std::string& document_id,
                          const GetChildDocumentsCallback& callback) override;
   void GetDocument(const std::string& authority,
                    const std::string& document_id,
                    const GetDocumentCallback& callback) override;
   void GetFileSize(const std::string& url,
                    const GetFileSizeCallback& callback) override;
+  void Init(mojom::FileSystemHostPtr host) override;
   void OpenFileToRead(const std::string& url,
                       const OpenFileToReadCallback& callback) override;
+  void RemoveWatcher(int64_t watcher_id,
+                     const RemoveWatcherCallback& callback) override;
   void RequestMediaScan(const std::vector<std::string>& paths) override;
 
  private:
   // A pair of an authority and a document ID which identifies the location
   // of a document in documents providers.
   using DocumentKey = std::pair<std::string, std::string>;
 
   base::ThreadChecker thread_checker_;
 
   base::ScopedTempDir temp_dir_;
 
   // Mapping from a content URL to a file.
   std::map<std::string, File> files_;
 
   // Mapping from a document key to a document.
   std::map<DocumentKey, Document> documents_;
 
   // Mapping from a document key to its child documents.
   std::map<DocumentKey, std::vector<DocumentKey>> child_documents_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeFileSystemInstance);
 };
 
 }  // namespace arc
 
 #endif  // COMPONENTS_ARC_TEST_FAKE_FILE_SYSTEM_INSTANCE_H_