Fixed "blocking io" from FixupPath on UI thread.

net/base/filename_util.h

Index: net/base/filename_util.h
diff --git a/net/base/filename_util.h b/net/base/filename_util.h
index 6b151bad9b0bb93f859d7ee06a78695360b7569b..7d269720d63fdcbf24243638b3b7b83898b7f6d7 100644
--- a/net/base/filename_util.h
+++ b/net/base/filename_util.h
@@ -20,8 +20,14 @@ namespace  net {
 
 // Given the full path to a file name, creates a file: URL. The returned URL
 // may not be valid if the input is malformed.
+// Can be used only in IO thread because if adding current diretory to path
+// will indirectly do AssertIOAllowed

[davidben, 2015/04/14 16:26:22]

I think there may be some confusion here. AssertIOAllowed does not mean this is
only callable on the IO thread. The IO thread is the IPC and network IO thread
and should not have file IO.

 NET_EXPORT GURL FilePathToFileURL(const base::FilePath& path);
 
+// Variant of FilePathToFileURL, that doesn't add current direstory fo paths
+// that are recognized as relarive. Can be used on any thread.
+NET_EXPORT GURL FilePathToFileURLNoCWD(const base::FilePath& path);
+
 // Converts a file: URL back to a filename that can be passed to the OS. The
 // file URL must be well-formed (GURL::is_valid() must return true); we don't
 // handle degenerate cases here. Returns true on success, false if it isn't a