Move off ZipString and over to std::string/std::string_view as appropriate.

Bug: http://b/129068177
Test: treehugger
Change-Id: Ib46761d89772d3a3c655a39df573fd305c117d19
diff --git a/libs/androidfw/ApkAssets.cpp b/libs/androidfw/ApkAssets.cpp
index 61e3230..237c1e9 100644
--- a/libs/androidfw/ApkAssets.cpp
+++ b/libs/androidfw/ApkAssets.cpp
@@ -216,7 +216,7 @@
     return false;
   }
 
-  ::ZipString name;
+  std::string name;
   ::ZipEntry entry;
 
   // We need to hold back directories because many paths will contain them and we want to only
@@ -225,7 +225,7 @@
 
   int32_t result;
   while ((result = ::Next(cookie, &entry, &name)) == 0) {
-    StringPiece full_file_path(reinterpret_cast<const char*>(name.name), name.name_length);
+    StringPiece full_file_path(name);
     StringPiece leaf_file_path = full_file_path.substr(root_path_full.size());
 
     if (!leaf_file_path.empty()) {