Rename variable, class, function, etc from libarchive to minizip.

ui/file_manager/zip_archiver/cpp/volume.cc

Index: ui/file_manager/zip_archiver/cpp/volume.cc
diff --git a/ui/file_manager/zip_archiver/cpp/volume.cc b/ui/file_manager/zip_archiver/cpp/volume.cc
index 97d63803e639e7cfee20a97d61ed613397928595..1d9baa8372abe2fa48ab72c42e0848c9f5908b25 100644
--- a/ui/file_manager/zip_archiver/cpp/volume.cc
+++ b/ui/file_manager/zip_archiver/cpp/volume.cc
@@ -26,7 +26,7 @@ typedef std::map<std::string, VolumeArchive*>::const_iterator
 const char kPathDelimiter[] = "/";
 
 // size is int64_t and modification_time is time_t because this is how
-// libarchive is going to pass them to us.
+// minizip is going to pass them to us.
 pp::VarDictionary CreateEntry(int64_t index,
                               const std::string& name,
                               bool is_directory,
@@ -144,7 +144,7 @@ class JavaScriptRequestor : public JavaScriptRequestorInterface {
 class VolumeArchiveFactory : public VolumeArchiveFactoryInterface {
  public:
   virtual VolumeArchive* Create(VolumeReader* reader) {
-    return new VolumeArchiveLibarchive(reader);
+    return new VolumeArchiveMinizip(reader);
   }
 };