fileapi: Rename FileSystemMountProvider to FileSystemBackend

chrome/browser/media_galleries/scoped_mtp_device_map_entry.cc

Index: chrome/browser/media_galleries/scoped_mtp_device_map_entry.cc
diff --git a/chrome/browser/media_galleries/scoped_mtp_device_map_entry.cc b/chrome/browser/media_galleries/scoped_mtp_device_map_entry.cc
index 703efadbf26ebbbb77848dc2204f94a83106fbdb..e659c898f43a7a7aaab0db85d47f8384a6b1e9b7 100644
--- a/chrome/browser/media_galleries/scoped_mtp_device_map_entry.cc
+++ b/chrome/browser/media_galleries/scoped_mtp_device_map_entry.cc
@@ -6,7 +6,7 @@
 
 #include "base/bind.h"
 #include "base/threading/sequenced_worker_pool.h"
-#include "chrome/browser/media_galleries/fileapi/media_file_system_mount_point_provider.h"
+#include "chrome/browser/media_galleries/fileapi/media_file_system_backend.h"
 #include "chrome/browser/media_galleries/fileapi/mtp_device_map_service.h"
 #include "chrome/browser/media_galleries/mtp_device_delegate_impl.h"
 #include "content/public/browser/browser_thread.h"
@@ -19,7 +19,7 @@ bool IsMediaTaskRunnerThread() {
   base::SequencedWorkerPool* pool = content::BrowserThread::GetBlockingPool();
   base::SequencedWorkerPool::SequenceToken media_sequence_token =
       pool->GetNamedSequenceToken(
-          MediaFileSystemMountPointProvider::kMediaTaskRunnerName);
+          MediaFileSystemBackend::kMediaTaskRunnerName);
   return pool->IsRunningSequenceOnCurrentThread(media_sequence_token);
 }
 
@@ -27,7 +27,7 @@ scoped_refptr<base::SequencedTaskRunner> GetSequencedTaskRunner() {
   base::SequencedWorkerPool* pool = content::BrowserThread::GetBlockingPool();
   base::SequencedWorkerPool::SequenceToken media_sequence_token =
       pool->GetNamedSequenceToken(
-          MediaFileSystemMountPointProvider::kMediaTaskRunnerName);
+          MediaFileSystemBackend::kMediaTaskRunnerName);
   return pool->GetSequencedTaskRunner(media_sequence_token);
 }