Make StringPiece to be std::string_view alias

Bug: 237583012
Test: build + boot + UTs

Change-Id: I849831f4466d3b9c7ec842b75256e7fcba77a0c0
diff --git a/tools/aapt2/text/Utf8Iterator.h b/tools/aapt2/text/Utf8Iterator.h
index 9318401..2bba198 100644
--- a/tools/aapt2/text/Utf8Iterator.h
+++ b/tools/aapt2/text/Utf8Iterator.h
@@ -25,7 +25,7 @@
 
 class Utf8Iterator {
  public:
-  explicit Utf8Iterator(const android::StringPiece& str);
+  explicit Utf8Iterator(android::StringPiece str);
 
   bool HasNext() const;