Add FilePath to base namespace.

chrome/browser/first_run/first_run.h

Index: chrome/browser/first_run/first_run.h
diff --git a/chrome/browser/first_run/first_run.h b/chrome/browser/first_run/first_run.h
index 970cdd452e4dea22ca79dae71cda59384ee883ff..cf93bcf467b59e471dcb4930f987034abb895c58 100644
--- a/chrome/browser/first_run/first_run.h
+++ b/chrome/browser/first_run/first_run.h
@@ -17,12 +17,15 @@
 #include "ui/gfx/native_widget_types.h"
 
 class CommandLine;
-class FilePath;
 class GURL;
 class PrefServiceSyncable;
 class Profile;
 class ProcessSingleton;
 
+namespace base {
+class FilePath;
+}
+
 // This namespace contains the chrome first-run installation actions needed to
 // fully test the custom installer. It also contains the opposite actions to
 // execute during uninstall. When the first run UI is ready we won't
@@ -133,10 +136,10 @@ void DoPostImportTasks(Profile* profile, bool make_chrome_default);
 int ImportNow(Profile* profile, const CommandLine& cmdline);
 
 // Returns the path for the master preferences file.
-FilePath MasterPrefsPath();
+base::FilePath MasterPrefsPath();
 
 // Set a master preferences file path that overrides platform defaults.
-void SetMasterPrefsPathForTesting(const FilePath& master_prefs);
+void SetMasterPrefsPathForTesting(const base::FilePath& master_prefs);
 
 // The master preferences is a JSON file with the same entries as the
 // 'Default\Preferences' file. This function locates this file from a standard
@@ -152,7 +155,7 @@ void SetMasterPrefsPathForTesting(const FilePath& master_prefs);
 // See chrome/installer/util/master_preferences.h for a description of
 // 'master_preferences' file.
 ProcessMasterPreferencesResult ProcessMasterPreferences(
-    const FilePath& user_data_dir,
+    const base::FilePath& user_data_dir,
     MasterPrefs* out_prefs);
 
 // Show the first run search engine bubble at the first appropriate opportunity.