Add AssertNoURLRequests() to URLRequestContext subclass destructors.

net/proxy/proxy_script_fetcher_impl_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 "net/proxy/proxy_script_fetcher_impl.h"
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
@@ skipping 67 matching lines @@
         network_session.get(), HttpCache::DefaultBackend::InMemory(0)));
     URLRequestJobFactoryImpl* job_factory = new URLRequestJobFactoryImpl();
 #if !defined(DISABLE_FILE_SUPPORT)
     job_factory->SetProtocolHandler(
         "file", new FileProtocolHandler(base::MessageLoopProxy::current()));
 #endif
     storage_.set_job_factory(job_factory);
   }
 
   virtual ~RequestContext() {
+    AssertNoURLRequests();
   }
 
  private:
   URLRequestContextStorage storage_;
 };
 
 #if !defined(DISABLE_FILE_SUPPORT)
 // Get a file:// url relative to net/data/proxy/proxy_script_fetcher_unittest.
 GURL GetTestFileUrl(const std::string& relpath) {
   base::FilePath path;
@@ skipping 385 matching lines @@
   {
     GURL url(kEncodedUrlBroken);
     base::string16 text;
     TestCompletionCallback callback;
     int result = pac_fetcher.Fetch(url, &text, callback.callback());
     EXPECT_EQ(ERR_FAILED, result);
   }
 }
 
 }  // namespace net