gdata: Add GDataCache::GetResourceIdsOfAllFiles()

chrome/browser/chromeos/gdata/gdata_cache.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_CACHE_H_
 #define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_CACHE_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 150 matching lines @@
     const std::string& md5,
     const GetCacheEntryCallback& callback);
 
   // Gets the resource IDs of pinned-but-not-fetched files and
   // dirty-but-not-uploaded files.
   //
   // Must be called on UI thread. |callback| is run on UI thread.
   void GetResourceIdsOfBacklogOnUIThread(
       const GetResourceIdsOfBacklogCallback& callback);
 
-  // Gets the resource IDs of all pinned files, including pinned dirty files.
+  // Gets the resource IDs of all exsiting (i.e. cached locally) pinned
+  // files, including pinned dirty files.
   //
   // Must be called on UI thread. |callback| is run on UI thread.
   void GetResourceIdsOfExistingPinnedFilesOnUIThread(
       const GetResourceIdsCallback& callback);
 
+  // Gets the resource IDs of all files in the cache.
+  //
+  // Must be called on UI thread. |callback| is run on UI thread.
+  void GetResourceIdsOfAllFilesOnUIThread(
+      const GetResourceIdsCallback& callback);
+
   // Frees up disk space to store the given number of bytes, while keeping
   // kMinFreSpace bytes on the disk, if needed.  |has_enough_space| is
   // updated to indicate if we have enough space.
   void FreeDiskSpaceIfNeededFor(int64 num_bytes,
                                 bool* has_enough_space);
 
   // Checks if file corresponding to |resource_id| and |md5| exists in cache.
   void GetFileOnUIThread(const std::string& resource_id,
                          const std::string& md5,
                          const GetFileFromCacheCallback& callback);
@@ skipping 137 matching lines @@
 
   // Used to implement GetResourceIdsOfBacklogOnUIThread.
   void GetResourceIdsOfBacklog(
       std::vector<std::string>* to_fetch,
       std::vector<std::string>* to_upload);
 
   // Used to implement GetResourceIdsOfExistingPinnedFilesOnUIThread.
   void GetResourceIdsOfExistingPinnedFiles(
       std::vector<std::string>* resource_ids);
 
+  // Used to implement GetResourceIdsOfAllFilesOnUIThread.
+  void GetResourceIdsOfAllFiles(
+      std::vector<std::string>* resource_ids);
+
   // Used to implement GetFileOnUIThread.
   void GetFile(const std::string& resource_id,
                const std::string& md5,
                GDataFileError* error,
                FilePath* cache_file_path);
 
   // Used to implement StoreOnUIThread.
   void Store(const std::string& resource_id,
              const std::string& md5,
              const FilePath& source_path,
@@ skipping 102 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_CACHE_H_