Add HTTP PUT request type to content:URLFetcher

content/public/common/url_fetcher.h

Index: content/public/common/url_fetcher.h
===================================================================
--- content/public/common/url_fetcher.h	(revision 120612)
+++ content/public/common/url_fetcher.h	(working copy)
@@ -76,6 +76,7 @@
     HEAD,
     DELETE_REQUEST,   // DELETE is already taken on Windows.
                       // <winnt.h> defines a DELETE macro.
+    PUT,
   };
 
   // |url| is the URL to send the request to.
@@ -139,9 +140,15 @@
 
   // Set extra headers on the request.  Must be called before the request
   // is started.
+  // This replaces the entire extra request headers.
   virtual void SetExtraRequestHeaders(
       const std::string& extra_request_headers) = 0;
 
+  // Add header (with format field-name ":" [ field-value ]) to the request
+  // headers.  Must be called before the request is started.
+  // This appends the header to the current extra request headers.
+  virtual void AddExtraRequestHeader(const std::string& header_line) = 0;
+
   virtual void GetExtraRequestHeaders(net::HttpRequestHeaders* headers) = 0;
 
   // Set the net::URLRequestContext on the request.  Must be called before the