SyncFS: Introduce SyncFileSystemBackend

chrome/browser/sync_file_system/local_file_sync_service_unittest.cc

 // Copyright (c) 2012 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.
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/location.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/run_loop.h"
 #include "base/stl_util.h"
 #include "base/threading/thread.h"
 #include "chrome/browser/sync_file_system/local_file_sync_service.h"
 #include "chrome/browser/sync_file_system/mock_local_change_processor.h"
 #include "chrome/browser/sync_file_system/sync_file_system_test_util.h"
 #include "chrome/test/base/testing_profile.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webkit/browser/fileapi/file_system_context.h"
 #include "webkit/browser/fileapi/syncable/canned_syncable_file_system.h"
 #include "webkit/browser/fileapi/syncable/file_change.h"
 #include "webkit/browser/fileapi/syncable/local_file_change_tracker.h"
 #include "webkit/browser/fileapi/syncable/local_file_sync_context.h"
 #include "webkit/browser/fileapi/syncable/local_file_sync_status.h"
 #include "webkit/browser/fileapi/syncable/mock_sync_status_observer.h"
 #include "webkit/browser/fileapi/syncable/sync_file_metadata.h"
+#include "webkit/browser/fileapi/syncable/sync_file_system_backend.h"
 #include "webkit/browser/fileapi/syncable/sync_status_code.h"
 #include "webkit/browser/fileapi/syncable/syncable_file_system_util.h"
 
 using fileapi::FileSystemURL;
 using ::testing::_;
 using ::testing::AtLeast;
 using ::testing::InvokeWithoutArgs;
 using ::testing::StrictMock;
 
 namespace sync_file_system {
@@ skipping 80 matching lines @@
     SyncStatusCode status = SYNC_STATUS_UNKNOWN;
     local_service_->MaybeInitializeFileSystemContext(
         GURL(kOrigin), file_system_->file_system_context(),
         AssignAndQuitCallback(&run_loop, &status));
     run_loop.Run();
 
     local_service_->AddChangeObserver(this);
 
     EXPECT_EQ(base::PLATFORM_FILE_OK, file_system_->OpenFileSystem());
 
-    file_system_->file_system_context()->sync_context()->
+    file_system_->backend()->sync_context()->
         set_mock_notify_changes_duration_in_sec(0);
   }
 
   virtual void TearDown() OVERRIDE {
     local_service_->Shutdown();
     file_system_->TearDown();
     RevokeSyncableFileSystem();
 
     thread_helper_.TearDown();
   }
@@ skipping 25 matching lines @@
     base::RunLoop run_loop;
     SyncStatusCode sync_status = SYNC_STATUS_UNKNOWN;
     local_service_->ApplyRemoteChange(
         change, local_path, url,
         AssignAndQuitCallback(&run_loop, &sync_status));
     run_loop.Run();
     return sync_status;
   }
 
   int64 GetNumChangesInTracker() const {
-    return file_system_->file_system_context()->change_tracker()->num_changes();
+    return file_system_->backend()->change_tracker()->num_changes();
   }
 
   ScopedEnableSyncFSDirectoryOperation enable_directory_operation_;
   TestingProfile profile_;
 
   MultiThreadTestHelper thread_helper_;
 
   base::ScopedTempDir temp_dir_;
 
   scoped_ptr<CannedSyncableFileSystem> file_system_;
@@ skipping 99 matching lines @@
   file_system2.SetUp();
 
   base::RunLoop run_loop;
   SyncStatusCode status = SYNC_STATUS_UNKNOWN;
   local_service_->MaybeInitializeFileSystemContext(
       GURL(kOrigin2), file_system2.file_system_context(),
       AssignAndQuitCallback(&run_loop, &status));
   run_loop.Run();
 
   EXPECT_EQ(base::PLATFORM_FILE_OK, file_system2.OpenFileSystem());
-  file_system2.file_system_context()->sync_context()->
+  file_system2.backend()->sync_context()->
       set_mock_notify_changes_duration_in_sec(0);
 
   const FileSystemURL kFile1(file_system_->URL("file1"));
   const FileSystemURL kFile2(file_system_->URL("file2"));
   const FileSystemURL kFile3(file_system2.URL("file3"));
   const FileSystemURL kFile4(file_system2.URL("file4"));
 
   EXPECT_EQ(base::PLATFORM_FILE_OK, file_system_->CreateFile(kFile1));
   EXPECT_EQ(base::PLATFORM_FILE_OK, file_system_->CreateFile(kFile2));
   EXPECT_EQ(base::PLATFORM_FILE_OK, file_system2.CreateFile(kFile3));
@@ skipping 393 matching lines @@
   all_origins.insert(kOrigin2);
   all_origins.insert(kOrigin3);
   while (!all_origins.empty()) {
     ASSERT_TRUE(NextOriginToProcess(&origin));
     ASSERT_TRUE(ContainsKey(all_origins, origin));
     all_origins.erase(origin);
   }
 }
 
 }  // namespace sync_file_system