It is time.

ui/base/theme_provider.cc

Index: ui/base/theme_provider.cc
diff --git a/ui/base/theme_provider.cc b/ui/base/theme_provider.cc
deleted file mode 100644
index a32c7aa7d14a4210f864c0fbe10cb3a2cc11326a..0000000000000000000000000000000000000000
--- a/ui/base/theme_provider.cc
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011 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 "ui/base/theme_provider.h"
-
-namespace ui {
-
-// We have the destructor here because GCC puts the vtable in the first file
-// that includes a virtual function of the class. Leaving it just in the .h file
-// means that GCC will fail to link.
-
-ThemeProvider::~ThemeProvider() {
-}
-
-}  // namespace ui