[WIP] Provided file system from NACL.

chrome/browser/chromeos/file_system_provider/service.h

Index: chrome/browser/chromeos/file_system_provider/service.h
diff --git a/chrome/browser/chromeos/file_system_provider/service.h b/chrome/browser/chromeos/file_system_provider/service.h
index d2477f5667ddcc555910013552c84e93d57739f0..290dbc8d209155ad85889a518a241518c7774926 100644
--- a/chrome/browser/chromeos/file_system_provider/service.h
+++ b/chrome/browser/chromeos/file_system_provider/service.h
@@ -18,6 +18,7 @@
 #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_defs.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"
@@ -94,13 +95,15 @@ class Service : public KeyedService,
   // tags are supported, then |supports_notify_tag| must be true. Note, that
   // it is required in order to enable the internal cache. For success, returns
   // base::File::FILE_OK, otherwise an error code.
-  base::File::Error MountFileSystem(const std::string& extension_id,
-                                    const MountOptions& options);
+  base::File::Error MountFileSystem(
+      const std::string& source_id,
+      const MountOptions& options,
+      Source_Type source_type = Source_Type::extension);
 
   // Unmounts a file system with the specified |file_system_id| for the
   // |extension_id|. For success returns base::File::FILE_OK, otherwise an error
   // code.
-  base::File::Error UnmountFileSystem(const std::string& extension_id,
+  base::File::Error UnmountFileSystem(const std::string& source_id,
                                       const std::string& file_system_id,
                                       UnmountReason reason);
 
@@ -121,7 +124,7 @@ class Service : public KeyedService,
   // Returns a provided file system with |file_system_id|, handled by
   // the extension with |extension_id|. If not found, then returns NULL.
   ProvidedFileSystemInterface* GetProvidedFileSystem(
-      const std::string& extension_id,
+      const std::string& source_id,
       const std::string& file_system_id);
 
   // Returns a provided file system attached to the the passed
@@ -172,9 +175,11 @@ class Service : public KeyedService,
 
   // Mounts the file system in the specified context. See MountFileSystem() for
   // more information.
-  base::File::Error MountFileSystemInternal(const std::string& extension_id,
-                                            const MountOptions& options,
-                                            MountContext context);
+  base::File::Error MountFileSystemInternal(
+      const std::string& source_id,
+      const MountOptions& options,
+      MountContext context,
+      Source_Type source_type = Source_Type::extension);
 
   // Called when the providing extension accepts or refuses a unmount request.
   // If |error| is equal to FILE_OK, then the request is accepted.