Move file_path.h to base/files.

TBR=sky

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@184344 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/browser/storage_partition_impl.h b/content/browser/storage_partition_impl.h
index 6de28ed2..90722e20 100644
--- a/content/browser/storage_partition_impl.h
+++ b/content/browser/storage_partition_impl.h
@@ -6,7 +6,7 @@
 #define CONTENT_BROWSER_STORAGE_PARTITION_IMPL_H_
 
 #include "base/compiler_specific.h"
-#include "base/file_path.h"
+#include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/dom_storage/dom_storage_context_impl.h"