Remove raw values from proto APK

Raw attribute values are not included in xml files when building binary
APKs but they are when building proto APKs. Remove raw attribute values
and create a new convert flag that (--keep-raw-values) that allows raw
value to be kept.

Also added flag to link to keep raw attribute values.

Bug: 115915884
Bug: 116700688
Test: aapt2_tests
Change-Id: Id50136b775b3f43d159ca06181282f6a7b8eaf40
diff --git a/tools/aapt2/cmd/Convert.h b/tools/aapt2/cmd/Convert.h
index 6a6719c..9071063 100644
--- a/tools/aapt2/cmd/Convert.h
+++ b/tools/aapt2/cmd/Convert.h
@@ -20,6 +20,7 @@
 #include "Command.h"
 #include "LoadedApk.h"
 #include "format/binary/TableFlattener.h"
+#include "format/binary/XmlFlattener.h"
 
 namespace aapt {
 
@@ -33,8 +34,12 @@
         kOutputFormatProto, kOutputFormatBinary, kOutputFormatBinary), &output_format_);
     AddOptionalSwitch("--enable-sparse-encoding",
         "Enables encoding sparse entries using a binary search tree.\n"
-            "This decreases APK size at the cost of resource retrieval performance.",
-        &options_.use_sparse_entries);
+        "This decreases APK size at the cost of resource retrieval performance.",
+         &table_flattener_options_.use_sparse_entries);
+    AddOptionalSwitch("--keep-raw-values",
+        android::base::StringPrintf("Preserve raw attribute values in xml files when using the"
+            " '%s' output format", kOutputFormatBinary),
+        &xml_flattener_options_.keep_raw_values);
     AddOptionalSwitch("-v", "Enables verbose logging", &verbose_);
   }
 
@@ -44,14 +49,16 @@
   const static char* kOutputFormatProto;
   const static char* kOutputFormatBinary;
 
-  TableFlattenerOptions options_;
+  TableFlattenerOptions table_flattener_options_;
+  XmlFlattenerOptions xml_flattener_options_;
   std::string output_path_;
   Maybe<std::string> output_format_;
   bool verbose_ = false;
 };
 
 int Convert(IAaptContext* context, LoadedApk* input, IArchiveWriter* output_writer,
-            ApkFormat output_format, TableFlattenerOptions& options);
+            ApkFormat output_format,TableFlattenerOptions table_flattener_options,
+            XmlFlattenerOptions xml_flattener_options);
 
 }  // namespace aapt