Add FilePath to base namespace.

chrome/browser/printing/print_dialog_cloud.h

Index: chrome/browser/printing/print_dialog_cloud.h
diff --git a/chrome/browser/printing/print_dialog_cloud.h b/chrome/browser/printing/print_dialog_cloud.h
index 98cf1b57c4fedd8887ff0bfcbb81656d32d45d8e..752664627a4a1161c7e6a0651f5f1e47ee5c1c84 100644
--- a/chrome/browser/printing/print_dialog_cloud.h
+++ b/chrome/browser/printing/print_dialog_cloud.h
@@ -13,9 +13,12 @@
 #include "base/string16.h"
 #include "ui/gfx/native_widget_types.h"
 
-class FilePath;
 class CommandLine;
 
+namespace base {
+class FilePath;
+}
+
 namespace content {
 class BrowserContext;
 }
@@ -29,7 +32,7 @@ namespace print_dialog_cloud {
 // to.
 void CreatePrintDialogForFile(content::BrowserContext* browser_context,
                               gfx::NativeWindow modal_parent,
-                              const FilePath& path_to_file,
+                              const base::FilePath& path_to_file,
                               const string16& print_job_title,
                               const string16& print_ticket,
                               const std::string& file_type,