Add AssertNoURLRequests() to URLRequestContext subclass destructors.

chrome/test/base/testing_profile.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 "chrome/test/base/testing_profile.h"
 
 #include "base/base_paths.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 121 matching lines @@
  public:
   TestExtensionURLRequestContext() {
     net::CookieMonster* cookie_monster =
         content::CreateCookieStore(content::CookieStoreConfig())->
             GetCookieMonster();
     const char* const schemes[] = {extensions::kExtensionScheme};
     cookie_monster->SetCookieableSchemes(schemes, arraysize(schemes));
     set_cookie_store(cookie_monster);
   }
 
-  virtual ~TestExtensionURLRequestContext() {}
+  virtual ~TestExtensionURLRequestContext() {
+    AssertNoURLRequests();
+  }
 };
 
 class TestExtensionURLRequestContextGetter
     : public net::URLRequestContextGetter {
  public:
   virtual net::URLRequestContext* GetURLRequestContext() OVERRIDE {
     if (!context_.get())
       context_.reset(new TestExtensionURLRequestContext());
     return context_.get();
   }
@@ skipping 801 matching lines @@
       path_,
       delegate_,
       extension_policy_,
       pref_service_.Pass(),
       incognito_,
       guest_session_,
       supervised_user_id_,
       policy_service_.Pass(),
       testing_factories_));
 }