Add UMA stats for ObfuscatedFileUtil::GetDirectoryForOriginAndTypes().

webkit/fileapi/sandbox_mount_point_provider.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 WEBKIT_FILEAPI_SANDBOX_MOUNT_POINT_PROVIDER_H_
 #define WEBKIT_FILEAPI_SANDBOX_MOUNT_POINT_PROVIDER_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/fileapi/file_system_mount_point_provider.h"
 #include "webkit/fileapi/file_system_options.h"
 #include "webkit/fileapi/file_system_quota_util.h"
 
 namespace base {
 class SequencedTaskRunner;
 }
 
 namespace quota {
@@ skipping 124 matching lines @@
   virtual void StartUpdateOriginOnFileThread(
       const GURL& origin_url,
       FileSystemType type) OVERRIDE;
   virtual void EndUpdateOriginOnFileThread(
       const GURL& origin_url,
       FileSystemType type) OVERRIDE;
   virtual void InvalidateUsageCache(const GURL& origin_url,
                                     FileSystemType type) OVERRIDE;
 
   FileSystemQuotaUtil* quota_util() { return this; }
+  void CollectOpenFileSystemMetrics(base::PlatformFileError error_code);
 
  private:
   // Returns a path to the usage cache file.
   FilePath GetUsageCachePathForOriginAndType(
       const GURL& origin_url,
       FileSystemType type) const;
 
   FilePath OldCreateFileSystemRootPath(
       const GURL& origin_url, FileSystemType type);
 
   // Returns true if the given |url|'s scheme is allowed to access
   // filesystem.
   bool IsAllowedScheme(const GURL& url) const;
 
   friend class FileSystemTestOriginHelper;
   friend class SandboxMountPointProviderMigrationTest;
   friend class SandboxMountPointProviderOriginEnumeratorTest;
 
   scoped_refptr<base::SequencedTaskRunner> file_task_runner_;
 
   const FilePath profile_path_;
 
   FileSystemOptions file_system_options_;
 
   scoped_refptr<ObfuscatedFileUtil> sandbox_file_util_;
 
   // Acccessed only on the file thread.
   std::set<GURL> visited_origins_;
 
+  base::Time next_release_time_for_open_filesystem_stat_;
+
+  base::WeakPtrFactory<SandboxMountPointProvider> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(SandboxMountPointProvider);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_SANDBOX_MOUNT_POINT_PROVIDER_H_