Move code in components/safe_browsing_db and chrome/browser/s_b/ under the safe_browsing namespace.

chrome/browser/safe_browsing/local_safebrowsing_test_server.h

 // 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.
 
 #ifndef CHROME_BROWSER_SAFE_BROWSING_LOCAL_SAFEBROWSING_TEST_SERVER_H_
 #define CHROME_BROWSER_SAFE_BROWSING_LOCAL_SAFEBROWSING_TEST_SERVER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "net/test/spawned_test_server/local_test_server.h"
 
+namespace safe_browsing {
+
 // Runs a Python-based safebrowsing test server on the same machine in which the
 // LocalSafeBrowsingTestServer runs.
 class LocalSafeBrowsingTestServer : public net::LocalTestServer {
  public:
   // Initialize a safebrowsing server using the given |data_file|.
   explicit LocalSafeBrowsingTestServer(const base::FilePath& data_file);
 
   ~LocalSafeBrowsingTestServer() override;
 
   bool SetPythonPath() const override;
 
   // Returns the path to safe_browsing_testserver.py.
   bool GetTestServerPath(base::FilePath* testserver_path) const override;
 
  protected:
   // Adds the --data-file switch. Returns true on success.
   bool GenerateAdditionalArguments(
       base::DictionaryValue* arguments) const override;
 
  private:
   base::FilePath data_file_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalSafeBrowsingTestServer);
 };
 
+}  // namespace safe_browsing
+
 #endif  // CHROME_BROWSER_SAFE_BROWSING_LOCAL_SAFEBROWSING_TEST_SERVER_H_