Add tracking of parcel memory allocations.

Change-Id: I76ffed0e69ccfe70e87d98646f11d4de7c3fd980
diff --git a/include/binder/Parcel.h b/include/binder/Parcel.h
index 2ee99f8..6a69761 100644
--- a/include/binder/Parcel.h
+++ b/include/binder/Parcel.h
@@ -205,7 +205,11 @@
 
     // Explicitly close all file descriptors in the parcel.
     void                closeFileDescriptors();
-    
+
+    // Debugging: get metrics on current allocations.
+    static size_t       getGlobalAllocSize();
+    static size_t       getGlobalAllocCount();
+
 private:
     typedef void        (*release_func)(Parcel* parcel,
                                         const uint8_t* data, size_t dataSize,