Add FilePath to base namespace.

chrome/browser/net/sqlite_persistent_cookie_store.h

Index: chrome/browser/net/sqlite_persistent_cookie_store.h
diff --git a/chrome/browser/net/sqlite_persistent_cookie_store.h b/chrome/browser/net/sqlite_persistent_cookie_store.h
index 72675da44e003ac547db805dbd98119b356eef26..bb6206d8f211ca9dc36a5b394a49ae806e5b2699 100644
--- a/chrome/browser/net/sqlite_persistent_cookie_store.h
+++ b/chrome/browser/net/sqlite_persistent_cookie_store.h
@@ -16,9 +16,12 @@
 #include "net/cookies/cookie_monster.h"
 
 class ClearOnExitPolicy;
-class FilePath;
 class Task;
 
+namespace base {
+class FilePath;
+}
+
 namespace net {
 class CanonicalCookie;
 }
@@ -34,7 +37,7 @@ class SQLitePersistentCookieStore
   // If non-NULL, SQLitePersistentCookieStore will keep a scoped_refptr to the
   // |clear_on_exit_policy| throughout its lifetime.
   SQLitePersistentCookieStore(
-      const FilePath& path,
+      const base::FilePath& path,
       bool restore_old_session_cookies,
       ClearOnExitPolicy* clear_on_exit_policy);