Fix some clang errors on Android.

base/test/test_support_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 <stdarg.h>
 #include <string.h>
 
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/memory/singleton.h"
@@ skipping 114 matching lines @@
   }
 
   virtual void ScheduleWork() OVERRIDE {
     Waitable::GetInstance()->Signal();
   }
 
   virtual void ScheduleDelayedWork(
       const base::TimeTicks& delayed_work_time) OVERRIDE {
     Waitable::GetInstance()->Signal();
   }
+
+ protected:
+  virtual ~MessagePumpForUIStub() {}
 };
 
 base::MessagePump* CreateMessagePumpForUIStub() {
   return new MessagePumpForUIStub();
 };
 
 // Provides the test path for DIR_MODULE, DIR_CACHE and DIR_ANDROID_APP_DATA.
 bool GetTestProviderPath(int key, FilePath* result) {
   switch (key) {
     case base::DIR_MODULE: {
@@ skipping 42 matching lines @@
 void InitAndroidTestMessageLoop() {
   MessageLoop::InitMessagePumpForUIFactory(&CreateMessagePumpForUIStub);
 }
 
 void InitAndroidTest() {
   InitAndroidTestLogging();
   InitAndroidTestPaths();
   InitAndroidTestMessageLoop();
 }
 }  // namespace base