Add FilePath to base namespace.

chrome/browser/history/thumbnail_database.h

Index: chrome/browser/history/thumbnail_database.h
diff --git a/chrome/browser/history/thumbnail_database.h b/chrome/browser/history/thumbnail_database.h
index 9ee17c798b8ee4a0ede98ddb7fc8205a11eb1ff5..4e8f7894d21fd37732a749449df946e95e5bc579 100644
--- a/chrome/browser/history/thumbnail_database.h
+++ b/chrome/browser/history/thumbnail_database.h
@@ -15,11 +15,11 @@
 #include "sql/meta_table.h"
 #include "sql/statement.h"
 
-class FilePath;
 struct ThumbnailScore;
 class SkBitmap;
 
 namespace base {
+class FilePath;
 class RefCountedMemory;
 class Time;
 }
@@ -47,7 +47,7 @@ class ThumbnailDatabase {
 
   // Must be called after creation but before any other methods are called.
   // When not INIT_OK, no other functions should be called.
-  sql::InitStatus Init(const FilePath& db_name,
+  sql::InitStatus Init(const base::FilePath& db_name,
                        const HistoryPublisher* history_publisher,
                        URLDatabase* url_database);
 
@@ -56,7 +56,7 @@ class ThumbnailDatabase {
   // |db| is the database to open.
   // |db_name| is a path to the database file.
   static sql::InitStatus OpenDatabase(sql::Connection* db,
-                                      const FilePath& db_name);
+                                      const base::FilePath& db_name);
 
   // Transactions on the database.
   void BeginTransaction();
@@ -308,8 +308,8 @@ class ThumbnailDatabase {
   bool NeedsMigrationToTopSites();
 
   // Renames the database file and drops the Thumbnails table.
-  bool RenameAndDropThumbnails(const FilePath& old_db_file,
-                               const FilePath& new_db_file);
+  bool RenameAndDropThumbnails(const base::FilePath& old_db_file,
+                               const base::FilePath& new_db_file);
 
  private:
   friend class ExpireHistoryBackend;