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

chrome/renderer/chrome_content_renderer_client.h

Index: chrome/renderer/chrome_content_renderer_client.h
diff --git a/chrome/renderer/chrome_content_renderer_client.h b/chrome/renderer/chrome_content_renderer_client.h
index ca206a1f75a778e90d9c9abd25854fb8d2816022..764edae921fa3fd3fad07666071a79a6192d3980 100644
--- a/chrome/renderer/chrome_content_renderer_client.h
+++ b/chrome/renderer/chrome_content_renderer_client.h
@@ -5,6 +5,7 @@
 #ifndef CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 #define CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 
+#include <map>
 #include <set>
 #include <string>
 #include <vector>
@@ -150,6 +151,9 @@ class ChromeContentRendererClient : public content::ContentRendererClient {
   void RecordRapporURL(const std::string& metric, const GURL& url) override;
   scoped_ptr<blink::WebAppBannerClient> CreateAppBannerClient(
       content::RenderFrame* render_frame) override;
+  void AddImageContextMenuProperties(
+      const blink::WebURLResponse& response,
+      std::map<std::string, std::string>* properties) override;
 
 #if defined(ENABLE_EXTENSIONS)
   // Takes ownership.