Adding ExtraRequest info and exposing request to PLM observers

components/data_reduction_proxy/core/common/data_reduction_proxy_util.h

Index: components/data_reduction_proxy/core/common/data_reduction_proxy_util.h
diff --git a/components/data_reduction_proxy/core/common/data_reduction_proxy_util.h b/components/data_reduction_proxy/core/common/data_reduction_proxy_util.h
index 340c74afd1345d83a5d1525a6adbf660a98dc359..be0a16dabfffc724d58b06c0f795f260e5bc0e11 100644
--- a/components/data_reduction_proxy/core/common/data_reduction_proxy_util.h
+++ b/components/data_reduction_proxy/core/common/data_reduction_proxy_util.h
@@ -23,6 +23,7 @@ class TimeDelta;
 namespace net {
 class ProxyConfig;
 class ProxyInfo;
+class URLRequest;
 }
 
 namespace data_reduction_proxy {
@@ -87,6 +88,10 @@ bool ApplyProxyConfigToProxyInfo(const net::ProxyConfig& proxy_config,
                                  const GURL& url,
                                  net::ProxyInfo* data_reduction_proxy_info);
 
+// Calculates the effective original content length of the |request|, accounting
+// for partial responses if necessary.
+int64_t CalculateEffectiveOCL(const net::URLRequest& request);
+
 }  // namespace util
 
 namespace protobuf_parser {