Move EmptyString, kWhitespace and the BOM to base.

chrome/browser/policy/cloud/mock_device_management_service.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/browser/policy/cloud/mock_device_management_service.h"
 
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/strings/string_util.h"
 #include "net/base/net_errors.h"
 #include "net/url_request/url_request_test_util.h"
@@ skipping 32 matching lines @@
  private:
   // Searches for a query parameter and returns the associated value.
   const std::string& ExtractParameter(const std::string& name) const {
     for (ParameterMap::const_iterator entry(query_params_.begin());
          entry != query_params_.end();
          ++entry) {
       if (name == entry->first)
         return entry->second;
     }
 
-    return EmptyString();
+    return base::EmptyString();
   }
 
   MockDeviceManagementService* service_;
 
   DISALLOW_COPY_AND_ASSIGN(MockRequestJobBase);
 };
 
 // Synchronous mock request job that immediately completes on calling Run().
 class SyncRequestJob : public MockRequestJobBase {
  public:
@@ skipping 104 matching lines @@
   const em::DeviceManagementResponse dummy_response;
   return CreateSyncMockDeviceManagementJob(this, status, dummy_response);
 }
 
 Action<MockDeviceManagementService::CreateJobFunction>
     MockDeviceManagementService::CreateAsyncJob(MockDeviceManagementJob** job) {
   return CreateAsyncMockDeviceManagementJob(this, job);
 }
 
 }  // namespace policy