Use String8/16 c_str [tools]

Bug: 295394788
Test: make checkbuild
Change-Id: I82d6899d8c15a10b15399c39177290012bb5f13b
Merged-In: I82d6899d8c15a10b15399c39177290012bb5f13b
diff --git a/tools/aapt/FileFinder.cpp b/tools/aapt/FileFinder.cpp
index c9d0744..a5c19806 100644
--- a/tools/aapt/FileFinder.cpp
+++ b/tools/aapt/FileFinder.cpp
@@ -59,14 +59,14 @@
 
         String8 fullPath = basePath.appendPathCopy(entryName);
         // If this entry is a directory we'll recurse into it
-        if (isDirectory(fullPath.string()) ) {
+        if (isDirectory(fullPath.c_str()) ) {
             DirectoryWalker* copy = dw->clone();
             findFiles(fullPath, extensions, fileStore,copy);
             delete copy;
         }
 
         // If this entry is a file, we'll pass it over to checkAndAddFile
-        if (isFile(fullPath.string()) ) {
+        if (isFile(fullPath.c_str()) ) {
             checkAndAddFile(fullPath,dw->entryStats(),extensions,fileStore);
         }
     }