Move Contains() method to file_utils, stop relying on in extensions_protocol

base/file_util.h

Index: base/file_util.h
diff --git a/base/file_util.h b/base/file_util.h
index c064b2c4e30648232a85fcd1862612583732980b..4154856724e4ce8404c1007470456ee66ec07b32 100644
--- a/base/file_util.h
+++ b/base/file_util.h
@@ -103,10 +103,9 @@ bool AbsolutePath(FilePath* path);
 // Deprecated temporary compatibility function.
 bool AbsolutePath(std::wstring* path);
 
-// Returns true if this FilePath represents a parent dir of |other|. Both
-// paths are normalized before doing the comparison, but neither |this| nor
-// |other| are modified.
-bool PathContains(const FilePath& path, const FilePath& other);
+// Returns true if |parent| contains |child|. Both paths are converted to
+// absolute paths before doing the comparison.

[Erik does not do reviews, 2009/01/12 17:14:05]

If we're not going to handle MacOSX case-sensitivity issues, then there should
be a comment to that effect here.

+bool ContainsPath(const FilePath& parent, const FilePath& child);
 
 // Deprecated compatibility function.  Use FilePath::InsertBeforeExtension.
 void InsertBeforeExtension(FilePath* path, const FilePath::StringType& suffix);