"Load image" context menu item to reload a LoFi image.

components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h

Index: components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h
diff --git a/components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h b/components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h
index ab94b0f82fa714814fd33c6dcb31ea02c3f28f3e..4505d583c2bef73a23037d5be54d2a96d4657591 100644
--- a/components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h
+++ b/components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h
@@ -64,6 +64,13 @@ struct DataReductionProxyInfo {
   DataReductionProxyBypassAction bypass_action;
 };
 
+// Gets the header used for data reduction proxy requests and responses.
+const char* chrome_proxy_header();
+
+// Gets the Chrome-Proxy directive used by data reduction proxy Lo-Fi requests
+// and responses.
+const char* chrome_proxy_lo_fi_directive();
+
 // Returns true if the Chrome-Proxy header is present and contains a bypass
 // delay. Sets |proxy_info->bypass_duration| to the specified delay if greater
 // than 0, and to 0 otherwise to indicate that the default proxy delay