[dart:io] Namespaces for file IO

runtime/bin/platform_fuchsia.cc

Index: runtime/bin/platform_fuchsia.cc
diff --git a/runtime/bin/platform_fuchsia.cc b/runtime/bin/platform_fuchsia.cc
index 0a14909a621f43e9d2746a0f08c3fa9e3e2fc603..b322b439acf9c309ba7482863849e346f3130d5c 100644
--- a/runtime/bin/platform_fuchsia.cc
+++ b/runtime/bin/platform_fuchsia.cc
@@ -92,12 +92,12 @@ const char* Platform::ResolveExecutablePath() {
   if (executable_name == NULL) {
     return NULL;
   }
-  if ((executable_name[0] == '/') && File::Exists(executable_name)) {
-    return File::GetCanonicalPath(executable_name);
+  if ((executable_name[0] == '/') && File::Exists(NULL, executable_name)) {
+    return File::GetCanonicalPath(NULL, executable_name);
   }
   if (strchr(executable_name, '/') != NULL) {
-    const char* result = File::GetCanonicalPath(executable_name);
-    if (File::Exists(result)) {
+    const char* result = File::GetCanonicalPath(NULL, executable_name);
+    if (File::Exists(NULL, result)) {
       return result;
     }
   } else {
@@ -112,8 +112,8 @@ const char* Platform::ResolveExecutablePath() {
     while ((pathcopy = strtok_r(pathcopy, ":", &save)) != NULL) {
       snprintf(result, PATH_MAX, "%s/%s", pathcopy, executable_name);
       result[PATH_MAX] = '\0';
-      if (File::Exists(result)) {
-        return File::GetCanonicalPath(result);
+      if (File::Exists(NULL, result)) {
+        return File::GetCanonicalPath(NULL, result);
       }
       pathcopy = NULL;
     }