Add FilePath to base namespace.

chrome/browser/sync_file_system/remote_change_processor.h

Index: chrome/browser/sync_file_system/remote_change_processor.h
diff --git a/chrome/browser/sync_file_system/remote_change_processor.h b/chrome/browser/sync_file_system/remote_change_processor.h
index e76a8262f00308661a581b8684006f5fca7bbbd9..8fb00ad448a17d12bd1bf676f9ea8bbb5ba433a1 100644
--- a/chrome/browser/sync_file_system/remote_change_processor.h
+++ b/chrome/browser/sync_file_system/remote_change_processor.h
@@ -10,7 +10,9 @@
 #include "webkit/fileapi/syncable/sync_callbacks.h"
 #include "webkit/fileapi/syncable/sync_status_code.h"
 
+namespace base {
 class FilePath;
+}
 
 namespace fileapi {
 class FileChange;
@@ -59,7 +61,7 @@ class RemoteChangeProcessor {
   // have disabled any further writing).
   virtual void ApplyRemoteChange(
       const fileapi::FileChange& change,
-      const FilePath& local_path,
+      const base::FilePath& local_path,
       const fileapi::FileSystemURL& url,
       const fileapi::SyncStatusCallback& callback) = 0;