Move PathExists to base namespace.

content/browser/renderer_host/gtk_key_bindings_handler_unittest.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 "content/browser/renderer_host/gtk_key_bindings_handler.h"
 
 #include <gdk/gdkkeysyms.h>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 16 matching lines @@
     const char* name;
     const char* value;
   };
 
   GtkKeyBindingsHandlerTest()
       : window_(gtk_window_new(GTK_WINDOW_TOPLEVEL)),
         handler_(NULL) {
     base::FilePath gtkrc;
     PathService::Get(DIR_TEST_DATA, &gtkrc);
     gtkrc = gtkrc.AppendASCII("gtk_key_bindings_test_gtkrc");
-    EXPECT_TRUE(file_util::PathExists(gtkrc));
+    EXPECT_TRUE(base::PathExists(gtkrc));
 
     gtk_rc_parse(gtkrc.value().c_str());
 
     GtkWidget* fixed = gtk_fixed_new();
     handler_ = new GtkKeyBindingsHandler(fixed);
     gtk_container_add(GTK_CONTAINER(window_), fixed);
     gtk_widget_show(fixed);
     gtk_widget_show(window_);
   }
   virtual ~GtkKeyBindingsHandlerTest() {
@@ skipping 169 matching lines @@
                  kSelectAll, arraysize(kSelectAll));
 
   static const EditCommand kSetAnchor[] = {
     { "SetMark", "" }
   };
   TestKeyBinding(NewNativeWebKeyboardEvent(GDK_9, GDK_CONTROL_MASK),
                  kSetAnchor, arraysize(kSetAnchor));
 }
 
 }  // namespace content