gdata: Convert FindEntryByResourceIdSync() to asynchronous.

chrome/browser/chromeos/gdata/gdata_file_system.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_H_
 #define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_H_
 #pragma once
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/platform_file.h"
 #include "base/timer.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/sequenced_worker_pool.h"
-#include "chrome/browser/chromeos/gdata/find_entry_callback.h"
 #include "chrome/browser/chromeos/gdata/gdata_cache.h"
 #include "chrome/browser/chromeos/gdata/gdata_files.h"
 #include "chrome/browser/prefs/pref_change_registrar.h"
 #include "content/public/browser/notification_observer.h"
 
 namespace base {
 class WaitableEvent;
 }
 
 namespace gdata {
@@ skipping 145 matching lines @@
   };
 
   // Authenticates the user by fetching the auth token as
   // needed. |callback| will be run with the error code and the auth
   // token, on the thread this function is run.
   //
   // Must be called on UI thread.
   virtual void Authenticate(const AuthStatusCallback& callback) = 0;
 
   // Finds file info by using |resource_id|. This call does not initiate
-  // content refreshing and will invoke one of |callback| methods directly as
-  // it executes.
+  // content refreshing.
   //
-  // Can be called from UI/IO thread. |callback| is run on the calling thread
-  // synchronously.
-  virtual void FindEntryByResourceIdSync(const std::string& resource_id,
-                                         const FindEntryCallback& callback) = 0;
+  // Can be called from UI/IO thread. |callback| is run on the calling thread.
+  virtual void FindEntryByResourceId(const std::string& resource_id,
+                                     const FindEntryCallback& callback) = 0;
 
   // Initiates transfer of |remote_src_file_path| to |local_dest_file_path|.
   // |remote_src_file_path| is the virtual source path on the gdata file system.
   // |local_dest_file_path| is the destination path on the local file system.
   //
   // Must be called from *UI* thread. |callback| is run on the calling thread.
   virtual void TransferFileFromRemoteToLocal(
       const FilePath& remote_src_file_path,
       const FilePath& local_dest_file_path,
       const FileOperationCallback& callback) = 0;
@@ skipping 211 matching lines @@
   virtual ~GDataFileSystem();
 
   // GDataFileSystem overrides.
   virtual void Initialize() OVERRIDE;
   virtual void AddObserver(Observer* observer) OVERRIDE;
   virtual void RemoveObserver(Observer* observer) OVERRIDE;
   virtual void StartUpdates() OVERRIDE;
   virtual void StopUpdates() OVERRIDE;
   virtual void CheckForUpdates() OVERRIDE;
   virtual void Authenticate(const AuthStatusCallback& callback) OVERRIDE;
-  virtual void FindEntryByResourceIdSync(
+  virtual void FindEntryByResourceId(
       const std::string& resource_id,
       const FindEntryCallback& callback) OVERRIDE;
   virtual void SearchAsync(const std::string& search_query,
                            const ReadDirectoryCallback& callback) OVERRIDE;
   virtual void TransferFileFromRemoteToLocal(
       const FilePath& remote_src_file_path,
       const FilePath& local_dest_file_path,
       const FileOperationCallback& callback) OVERRIDE;
   virtual void TransferFileFromLocalToRemote(
       const FilePath& local_src_file_path,
@@ skipping 990 matching lines @@
   void GetFileByResourceIdOnUIThread(
       const std::string& resource_id,
       const GetFileCallback& get_file_callback,
       const GetDownloadDataCallback& get_download_data_callback);
   void GetEntryInfoByPathAsyncOnUIThread(
       const FilePath& file_path,
       const GetEntryInfoCallback& callback);
   void GetFileInfoByPathAsyncOnUIThread(
       const FilePath& file_path,
       const GetFileInfoCallback& callback);
+  void FindEntryByResourceIdOnUIThread(const std::string& resource_id,
+                                       const FindEntryCallback& callback);
   void ReadDirectoryByPathAsyncOnUIThread(
       const FilePath& file_path,
       const ReadDirectoryCallback& callback);
   void RequestDirectoryRefreshOnUIThread(
       const FilePath& file_path);
   void OnRequestDirectoryRefresh(GetDocumentsParams* params,
                                  base::PlatformFileError error);
   void GetCacheStateOnUIThread(const std::string& resource_id,
                                const std::string& md5,
                                const GetCacheStateCallback& callback);
@@ skipping 65 matching lines @@
 };
 
 // Sets the free disk space getter for testing.
 // The existing getter is deleted.
 void SetFreeDiskSpaceGetterForTesting(
     FreeDiskSpaceGetterInterface* getter);
 
 }  // namespace gdata
 
 #endif  // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_H_