Remove destruction-only TearDown() methods in Drive related test.

chrome/browser/chromeos/drive/drive_url_request_job_unittest.cc

 // Copyright 2013 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/browser/chromeos/drive/drive_url_request_job.h"
 
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
@@ skipping 111 matching lines @@
         base::Bind(&DriveURLRequestJobTest::GetFileSystem,
                    base::Unretained(this)),
         blocking_pool->GetSequencedTaskRunner(
             blocking_pool->GetSequenceToken())));
     url_request_context_.reset(new net::URLRequestContext());
     url_request_context_->set_job_factory(test_url_request_job_factory_.get());
     url_request_context_->set_network_delegate(test_network_delegate_.get());
     test_delegate_.reset(new TestDelegate);
   }
 
-  virtual void TearDown() OVERRIDE {
-    test_delegate_.reset();
-    url_request_context_.reset();
-    test_url_request_job_factory_.reset();
-    test_network_delegate_.reset();
-
-    fake_file_system_.reset();
-    fake_drive_service_.reset();
-  }
-
   FileSystemInterface* GetFileSystem() {
     return fake_file_system_.get();
   }
 
   bool ReadDriveFileSync(
       const base::FilePath& file_path, std::string* out_content) {
     scoped_ptr<base::Thread> worker_thread(
         new base::Thread("ReadDriveFileSync"));
     if (!worker_thread->Start())
       return false;
@@ skipping 219 matching lines @@
       "Range", "Wrong Range Header Value", false /* overwrite */);
   request.Start();
 
   base::RunLoop().Run();
 
   EXPECT_EQ(net::URLRequestStatus::FAILED, request.status().status());
   EXPECT_EQ(net::ERR_REQUEST_RANGE_NOT_SATISFIABLE, request.status().error());
 }
 
 }  // namespace drive