Add RegisterMountPointProvider and TestMountPointProvider for testing

webkit/fileapi/file_system_context.h

Index: webkit/fileapi/file_system_context.h
diff --git a/webkit/fileapi/file_system_context.h b/webkit/fileapi/file_system_context.h
index 472bf8aad216f8ba1fa1034e5b97791e9eb375df..46b73b18ab38514b8d6265e07fc54665ab9287d6 100644
--- a/webkit/fileapi/file_system_context.h
+++ b/webkit/fileapi/file_system_context.h
@@ -5,9 +5,11 @@
 #ifndef WEBKIT_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 
+#include <map>
 #include <string>
 
 #include "base/callback.h"
+#include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/platform_file.h"
@@ -15,7 +17,6 @@
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/quota/special_storage_policy.h"
 
-class FilePath;
 class GURL;
 
 namespace base {
@@ -135,6 +136,11 @@ class FileSystemContext
       const GURL& url,
       int64 offset);
 
+  // Register a filesystem provider. The ownership of |provider| is
+  // transferred to this instance.
+  void RegisterMountPointProvider(FileSystemType type,
+                                  FileSystemMountPointProvider* provider);
+
  private:
   friend struct DefaultContextDeleter;
   friend class base::DeleteHelper<FileSystemContext>;
@@ -147,11 +153,14 @@ class FileSystemContext
 
   scoped_refptr<quota::QuotaManagerProxy> quota_manager_proxy_;
 
-  // Mount point providers.
+  // Regular mount point providers.
   scoped_ptr<SandboxMountPointProvider> sandbox_provider_;
   scoped_ptr<IsolatedMountPointProvider> isolated_provider_;
   scoped_ptr<ExternalFileSystemMountPointProvider> external_provider_;
 
+  // Registered mount point providers.
+  std::map<FileSystemType, FileSystemMountPointProvider*> provider_map_;
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(FileSystemContext);
 };