Service Workers: Clean up cpplint.py warnings

content/browser/service_worker/service_worker_job_unittest.cc

 // Copyright 2014 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 "base/files/scoped_temp_dir.h"
 #include "base/logging.h"
 #include "base/run_loop.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/service_worker/embedded_worker_registry.h"
 #include "content/browser/service_worker/embedded_worker_test_helper.h"
@@ skipping 377 matching lines @@
 
   ASSERT_FALSE(called);
   base::RunLoop().RunUntilIdle();
   ASSERT_TRUE(called);
 
   ASSERT_EQ(new_registration, old_registration);
 }
 
 class FailToStartWorkerTestHelper : public EmbeddedWorkerTestHelper {
  public:
-  FailToStartWorkerTestHelper(int mock_render_process_id)
+  explicit FailToStartWorkerTestHelper(int mock_render_process_id)
       : EmbeddedWorkerTestHelper(mock_render_process_id) {}
 
   virtual void OnStartWorker(int embedded_worker_id,
                              int64 service_worker_version_id,
                              const GURL& scope,
                              const GURL& script_url) OVERRIDE {
     // Simulate failure by sending worker stopped instead of started.
     EmbeddedWorkerInstance* worker = registry()->GetWorker(embedded_worker_id);
     registry()->OnWorkerStopped(worker->process_id(), embedded_worker_id);
   }
@@ skipping 400 matching lines @@
 
   registration->active_version()->RemoveControllee(host.get());
   base::RunLoop().RunUntilIdle();
 
   // The version should be stopped since there is no controllee.
   EXPECT_EQ(ServiceWorkerVersion::STOPPED, version->running_status());
   EXPECT_EQ(ServiceWorkerVersion::REDUNDANT, version->status());
 }
 
 }  // namespace content