Support relative file paths in FilePathToFileURL().

net/base/net_util.cc

Index: net/base/net_util.cc
diff --git a/net/base/net_util.cc b/net/base/net_util.cc
index f7f11a687ba096438f77ceaa1c48d9af1a28aa69..a373432a0a4f3d6e92b1cba600dd57d3bc028be7 100644
--- a/net/base/net_util.cc
+++ b/net/base/net_util.cc
@@ -998,6 +998,12 @@ GURL FilePathToFileURL(const base::FilePath& path) {
   // "file://///server/path" for UNC. The URL canonicalizer will fix up the
   // latter case to be the canonical UNC form: "file://server/path"
   base::FilePath::StringType url_string(kFileURLPrefix);
+  if (!path.IsAbsolute()) {
+    base::FilePath current_dir;
+    PathService::Get(base::DIR_CURRENT, &current_dir);
+    url_string.append(current_dir.value());
+    url_string.push_back(base::FilePath::kSeparators[0]);
+  }
   url_string.append(path.value());
 
   // Now do replacement of some characters. Since we assume the input is a