Add FilePath to base namespace.

webkit/fileapi/sandbox_file_stream_writer.h

Index: webkit/fileapi/sandbox_file_stream_writer.h
diff --git a/webkit/fileapi/sandbox_file_stream_writer.h b/webkit/fileapi/sandbox_file_stream_writer.h
index a1f0e19919692492b7c7207b1d13d956f85f28e8..c1dfe18370f4a65cbaacc11dba065873f4c10789 100644
--- a/webkit/fileapi/sandbox_file_stream_writer.h
+++ b/webkit/fileapi/sandbox_file_stream_writer.h
@@ -52,7 +52,7 @@ class WEBKIT_STORAGE_EXPORT_PRIVATE SandboxFileStreamWriter
   void DidGetFileInfo(const net::CompletionCallback& callback,
                       base::PlatformFileError file_error,
                       const base::PlatformFileInfo& file_info,
-                      const FilePath& platform_path);
+                      const base::FilePath& platform_path);
   void DidGetUsageAndQuota(const net::CompletionCallback& callback,
                            quota::QuotaStatusCode status,
                            int64 usage, int64 quota);
@@ -74,7 +74,7 @@ class WEBKIT_STORAGE_EXPORT_PRIVATE SandboxFileStreamWriter
 
   UpdateObserverList observers_;
 
-  FilePath file_path_;
+  base::FilePath file_path_;
   int64 file_size_;
   int64 total_bytes_written_;
   int64 allowed_bytes_to_write_;