Consistently use namespaced base::Version in extensions code.

extensions/common/manifest_handlers/shared_module_info.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 "extensions/common/manifest_handlers/shared_module_info.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 169 matching lines @@
       }
       imports_.back().extension_id = extension_id;
       if (import_entry->HasKey(keys::kMinimumVersion)) {
         std::string min_version;
         if (!import_entry->GetString(keys::kMinimumVersion, &min_version)) {
           *error = ErrorUtils::FormatErrorMessageUTF16(
               errors::kInvalidImportVersion, base::SizeTToString(i));
           return false;
         }
         imports_.back().minimum_version = min_version;
-        Version v(min_version);
+        base::Version v(min_version);
         if (!v.IsValid()) {
           *error = ErrorUtils::FormatErrorMessageUTF16(
               errors::kInvalidImportVersion, base::SizeTToString(i));
           return false;
         }
       }
     }
   }
   return true;
 }
@@ skipping 30 matching lines @@
 
 const std::vector<std::string> SharedModuleHandler::Keys() const {
   static const char* keys[] = {
     keys::kExport,
     keys::kImport
   };
   return std::vector<std::string>(keys, keys + arraysize(keys));
 }
 
 }  // namespace extensions