Declare providing extension capabilities in the manifest.

chrome/browser/chromeos/file_system_provider/service.h

 // Copyright 2014 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 CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_SERVICE_H_
 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_SERVICE_H_
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/threading/thread_checker.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/file_system_provider/observer.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_observer.h"
 #include "chrome/browser/chromeos/file_system_provider/watcher.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/file_system_provider.h"
+#include "chrome/common/extensions/api/file_system_provider/file_system_provider_handler.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "content/public/browser/browser_context.h"
 #include "extensions/browser/extension_registry_observer.h"
 #include "extensions/common/extension.h"
 #include "storage/browser/fileapi/watcher_manager.h"
 
 namespace extensions {
 class ExtensionRegistry;
 }  // namespace extensions
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }  // namespace user_prefs
 
 namespace chromeos {
 namespace file_system_provider {
 
 class ProvidedFileSystemFactoryInterface;
 class ProvidedFileSystemInfo;
 class ProvidedFileSystemInterface;
 class RegistryInterface;
 class ServiceFactory;
 struct MountOptions;
 
 // Registers preferences to remember registered file systems between reboots.
 void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
 // Holds information for a providing extension.
 struct ProvidingExtensionInfo {
+  typedef extensions::FileSystemProviderCapabilities Capabilities;

[not at google - send to devlin, 2015/04/24 17:49:30]

prefer not to typedef things in the header file, though if you really need to
for some reason, IIRC it should be "using Capabilities =
extensions::FileSystemProviderCapabilities";

[mtomasz, 2015/05/07 03:33:59]

Done.

+
   ProvidingExtensionInfo();
   ~ProvidingExtensionInfo();
 
   std::string extension_id;
   std::string name;
-  bool can_configure;
-  bool can_add;
+  Capabilities capabilities;
 };
 
 // Manages and registers the file system provider service. Maintains provided
 // file systems.
 class Service : public KeyedService,
                 public extensions::ExtensionRegistryObserver,
                 public ProvidedFileSystemObserver {
  public:
   typedef base::Callback<ProvidedFileSystemInterface*(
       Profile* profile,
@@ skipping 133 matching lines @@
   base::ThreadChecker thread_checker_;
 
   base::WeakPtrFactory<Service> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(Service);
 };
 
 }  // namespace file_system_provider
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_SERVICE_H_