Revert of base: Remove using:: declaration from version.h header.

components/component_updater/component_updater_service_unittest.cc

 // Copyright 2015 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 <limits>
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 218 matching lines @@
   using update_client::abag_hash;
 
   const std::string id1 = "abagagagagagagagagagagagagagagag";
   const std::string id2 = "jebgalgnebhfojomionfpkfelancnnkf";
   std::vector<std::string> ids;
   ids.push_back(id1);
   ids.push_back(id2);
 
   CrxComponent crx_component1;
   crx_component1.pk_hash.assign(abag_hash, abag_hash + arraysize(abag_hash));
-  crx_component1.version = base::Version("1.0");
+  crx_component1.version = Version("1.0");
   crx_component1.installer = installer;
 
   CrxComponent crx_component2;
   crx_component2.pk_hash.assign(jebg_hash, jebg_hash + arraysize(jebg_hash));
-  crx_component2.version = base::Version("0.9");
+  crx_component2.version = Version("0.9");
   crx_component2.installer = installer;
 
   // Quit after two update checks have fired.
   LoopHandler loop_handler(2, quit_closure());
   EXPECT_CALL(update_client(), Update(ids, _, _))
       .WillRepeatedly(Invoke(&loop_handler, &LoopHandler::OnUpdate));
 
   EXPECT_CALL(update_client(), IsUpdating(id1)).Times(1);
 
   EXPECT_TRUE(component_updater().RegisterComponent(crx_component1));
@@ skipping 32 matching lines @@
   auto& cus = component_updater();
 
   const std::string id = "jebgalgnebhfojomionfpkfelancnnkf";
   EXPECT_FALSE(OnDemandTester::OnDemand(&cus, id));
 
   scoped_refptr<MockInstaller> installer(new MockInstaller());
 
   using update_client::jebg_hash;
   CrxComponent crx_component;
   crx_component.pk_hash.assign(jebg_hash, jebg_hash + arraysize(jebg_hash));
-  crx_component.version = base::Version("0.9");
+  crx_component.version = Version("0.9");
   crx_component.installer = installer;
 
   LoopHandler loop_handler(1, quit_closure());
   EXPECT_CALL(update_client(),
               Install("jebgalgnebhfojomionfpkfelancnnkf", _, _))
       .WillOnce(Invoke(&loop_handler, &LoopHandler::OnInstall));
 
   EXPECT_TRUE(cus.RegisterComponent(crx_component));
   EXPECT_TRUE(OnDemandTester::OnDemand(&cus, id));
 
@@ skipping 23 matching lines @@
   };
 
   auto config = configurator();
   config->SetInitialDelay(3600);
 
   scoped_refptr<MockInstaller> installer(new MockInstaller());
 
   using update_client::jebg_hash;
   CrxComponent crx_component;
   crx_component.pk_hash.assign(jebg_hash, jebg_hash + arraysize(jebg_hash));
-  crx_component.version = base::Version("0.9");
+  crx_component.version = Version("0.9");
   crx_component.installer = installer;
 
   LoopHandler loop_handler(1, quit_closure());
   EXPECT_CALL(update_client(),
               Install("jebgalgnebhfojomionfpkfelancnnkf", _, _))
       .WillOnce(Invoke(&loop_handler, &LoopHandler::OnInstall));
 
   EXPECT_TRUE(component_updater().RegisterComponent(crx_component));
   component_updater().MaybeThrottle(
       "jebgalgnebhfojomionfpkfelancnnkf",
       base::Bind(&ComponentUpdaterTest::ReadyCallback));
 
   RunThreads();
 }
 
 }  // namespace component_updater