Adding a Find method to the HeadersIterator class....

net/http/http_util.h

Index: net/http/http_util.h
===================================================================
--- net/http/http_util.h	(revision 29169)
+++ net/http/http_util.h	(working copy)
@@ -159,6 +159,14 @@
     // header name and values.
     bool GetNext();
 
+    // Iterates through the list of headers, starting with the current position
+    // and looks for the specified header.  Note that the name _must_ be
+    // lower cased.
+    // If the header was found, the return value will be true and the current
+    // position points to the header.  If the return value is false, the
+    // current position will be at the end of the headers.
+    bool AdvanceTo(const char* lowercase_name);
+
     std::string::const_iterator name_begin() const {
       return name_begin_;
     }