Implement delete on File objects.

runtime/bin/file_win.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include <fcntl.h>
 #include <io.h>
 #include <stdio.h>
 #include <string.h>
 #include <sys/stat.h>
 
@@ skipping 108 matching lines @@
 
 bool File::Create(const char* name) {
   int fd = open(name, O_RDONLY | O_CREAT, 0666);
   if (fd < 0) {
     return false;
   }
   return (close(fd) == 0);
 }
 
 
+bool File::Delete(const char* name) {
+  int status = remove(name);
+  if (status == -1) {
+    return false;
+  }
+  return true;
+}
+
+
 bool File::IsAbsolutePath(const char* pathname) {
   // Should we consider network paths?
   if (pathname == NULL) return false;
   return (strlen(pathname) > 2) &&
       (pathname[1] == ':') &&
       (pathname[2] == '\\');
 }
 
 
 char* File::GetCanonicalPath(const char* pathname) {
   int required_size = GetFullPathName(pathname, 0, NULL, NULL);
   char* path = static_cast<char*>(malloc(required_size));
   int written = GetFullPathName(pathname, required_size, path, NULL);
   ASSERT(written == (required_size - 1));
   return path;
 }
 
 
 const char* File::PathSeparator() {
   return "\\";
 }
 
 
 const char* File::StringEscapedPathSeparator() {
   return "\\\\";
 }