Add FilePath to base namespace.

chrome/browser/platform_util_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/logging.h"
 #include "chrome/browser/platform_util.h"
 #include "content/public/browser/android/content_view_core.h"
 
 namespace platform_util {
 
 // TODO: crbug/115682 to track implementation of the following methods.
 
-void ShowItemInFolder(const FilePath& full_path) {
+void ShowItemInFolder(const base::FilePath& full_path) {
   NOTIMPLEMENTED();
 }
 
-void OpenItem(const FilePath& full_path) {
+void OpenItem(const base::FilePath& full_path) {
   NOTIMPLEMENTED();
 }
 
 void OpenExternal(const GURL& url) {
   NOTIMPLEMENTED();
 }
 
 gfx::NativeWindow GetTopLevel(gfx::NativeView view) {
   NOTIMPLEMENTED();
   return view->GetWindowAndroid();
@@ skipping 13 matching lines @@
   NOTIMPLEMENTED();
 }
 
 bool IsVisible(gfx::NativeView view) {
   NOTIMPLEMENTED();
   return true;
 }
 
 } // namespace platform_util