Implement special origin database handling for Isolated Apps

webkit/browser/fileapi/obfuscated_file_util.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_BROWSER_FILEAPI_OBFUSCATED_FILE_UTIL_H_
 #define WEBKIT_BROWSER_FILEAPI_OBFUSCATED_FILE_UTIL_H_
 
 #include <map>
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util_proxy.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/platform_file.h"
 #include "base/timer.h"
 #include "webkit/browser/fileapi/file_system_file_util.h"
 #include "webkit/browser/fileapi/file_system_url.h"
 #include "webkit/browser/fileapi/sandbox_directory_database.h"
-#include "webkit/browser/fileapi/sandbox_origin_database.h"
 #include "webkit/common/blob/shareable_file_reference.h"
 #include "webkit/common/fileapi/file_system_types.h"
 #include "webkit/storage/webkit_storage_export.h"
 
 namespace base {
 class Time;
 }
 
+namespace quota {
+class SpecialStoragePolicy;
+}
+
 class GURL;
 
 namespace fileapi {
 
 class FileSystemOperationContext;
+class SandboxOriginDatabaseInterface;
 
 // The overall implementation philosophy of this class is that partial failures
 // should leave us with an intact database; we'd prefer to leak the occasional
 // backing file than have a database entry whose backing file is missing.  When
 // doing FSCK operations, if you find a loose backing file with no reference,
 // you may safely delete it.
 //
 // This class must be deleted on the FILE thread, because that's where
 // DropDatabases needs to be called.
 class WEBKIT_STORAGE_EXPORT_PRIVATE ObfuscatedFileUtil
     : public FileSystemFileUtil {
  public:
   // Origin enumerator interface.
   // An instance of this interface is assumed to be called on the file thread.
   class AbstractOriginEnumerator {
    public:
     virtual ~AbstractOriginEnumerator() {}
 
     // Returns the next origin.  Returns empty if there are no more origins.
     virtual GURL Next() = 0;
 
     // Returns the current origin's information.
     virtual bool HasFileSystemType(FileSystemType type) const = 0;
   };
 
-  explicit ObfuscatedFileUtil(const base::FilePath& file_system_directory);
+  ObfuscatedFileUtil(
+      quota::SpecialStoragePolicy* special_storage_policy,
+      const base::FilePath& file_system_directory);
   virtual ~ObfuscatedFileUtil();
 
   // FileSystemFileUtil overrides.
   virtual base::PlatformFileError CreateOrOpen(
       FileSystemOperationContext* context,
       const FileSystemURL& url,
       int file_flags,
       base::PlatformFile* file_handle,
       bool* created) OVERRIDE;
   virtual base::PlatformFileError Close(
@@ skipping 174 matching lines @@
 
   base::PlatformFileError CreateOrOpenInternal(
       FileSystemOperationContext* context,
       const FileSystemURL& url,
       int file_flags,
       base::PlatformFile* file_handle,
       bool* created);
 
   typedef std::map<std::string, SandboxDirectoryDatabase*> DirectoryMap;
   DirectoryMap directories_;
-  scoped_ptr<SandboxOriginDatabase> origin_database_;
+  scoped_ptr<SandboxOriginDatabaseInterface> origin_database_;
+  scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_;
   base::FilePath file_system_directory_;
   base::OneShotTimer<ObfuscatedFileUtil> timer_;
 
+  // If this instance is initialized for an isolated origin, this should
+  // only see a single origin.
+  GURL isolated_origin_;
+
   DISALLOW_COPY_AND_ASSIGN(ObfuscatedFileUtil);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_OBFUSCATED_FILE_UTIL_H_