Be a little more careful whether something is an URL or a file path.

chrome/browser/net/url_fixer_upper_unittest.cc

Index: chrome/browser/net/url_fixer_upper_unittest.cc
===================================================================
--- chrome/browser/net/url_fixer_upper_unittest.cc	(revision 95185)
+++ chrome/browser/net/url_fixer_upper_unittest.cc	(working copy)
@@ -516,4 +516,11 @@
   // done with the subdir
   EXPECT_TRUE(file_util::Delete(full_path, false));
   EXPECT_TRUE(file_util::Delete(new_dir, true));
+
+  // Test that an obvious HTTP URL isn't accidentally treated as an absolute
+  // file path (on account of system-specific craziness).
+  FilePath empty_path;
+  FilePath http_url_path(FILE_PATH_LITERAL("http://../"));
+  EXPECT_TRUE(URLFixerUpper::FixupRelativeFile(
+      empty_path, http_url_path).SchemeIs("http"));
 }