Checkpoint: android fixes towards compilation of unit_tests.

chrome/browser/prerender/prerender_manager.h

 // 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.
 
 #ifndef CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_
 #pragma once
 
 #include <list>
 #include <string>
@@ skipping 19 matching lines @@
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
 class WebContents;
 }
 
 #if defined(COMPILER_GCC)
 
-namespace __gnu_cxx {
+namespace BASE_HASH_NAMESPACE {
 template <>
 struct hash<content::WebContents*> {
   std::size_t operator()(content::WebContents* value) const {
     return reinterpret_cast<std::size_t>(value);
   }
 };
 }
 
 #endif
 
@@ skipping 379 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderManager);
 };
 
 PrerenderManager* FindPrerenderManagerUsingRenderProcessId(
     int render_process_id);
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_