Asynchronously pre-fault the native library pages.

third_party/android_crazy_linker/src/include/crazy_linker.h

Index: third_party/android_crazy_linker/src/include/crazy_linker.h
diff --git a/third_party/android_crazy_linker/src/include/crazy_linker.h b/third_party/android_crazy_linker/src/include/crazy_linker.h
index 07a41d7b31babe7695aaee486deedaf4dc02f7e4..94173cfab714fdb44af3258cc208d493d042d993 100644
--- a/third_party/android_crazy_linker/src/include/crazy_linker.h
+++ b/third_party/android_crazy_linker/src/include/crazy_linker.h
@@ -361,6 +361,20 @@ crazy_status_t crazy_library_file_path_in_zip_file(const char* lib_name,
                                                    size_t buffer_size)
     _CRAZY_PUBLIC;
 
+
+// Return the offset and size of a library stored in the zip file;
+crazy_status_t crazy_library_offset_size_in_zip_file(const char* zip_filename,
+						     const char* lib_name,
+						     int* offset, int* size)
+    _CRAZY_PUBLIC;
+
+// Fault a library in memory.
+// |filename| file to fault in.
+// |offset| start offset in the file.
+// |size| size of the file section to consider. -1 for the whole file.
+crazy_status_t crazy_prefault_library(const char* filename, int offset,
+				      int size) _CRAZY_PUBLIC;
+
 // Check whether |lib_name| is page aligned and uncompressed in |zipfile_name|.
 crazy_status_t crazy_linker_check_library_is_mappable_in_zip_file(
     const char* zipfile_name,