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

chrome/renderer/chrome_render_frame_observer.cc

Index: chrome/renderer/chrome_render_frame_observer.cc
diff --git a/chrome/renderer/chrome_render_frame_observer.cc b/chrome/renderer/chrome_render_frame_observer.cc
index 1518bf604b59d9a4e5b0b6057a44e16923ecb914..e0fc6101fa810697827311eb524c584804b7093b 100644
--- a/chrome/renderer/chrome_render_frame_observer.cc
+++ b/chrome/renderer/chrome_render_frame_observer.cc
@@ -27,6 +27,7 @@
 #include "third_party/WebKit/public/web/WebFrame.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebNode.h"
+#include "third_party/WebKit/public/web/WebView.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/codec/jpeg_codec.h"
 
@@ -94,6 +95,8 @@ bool ChromeRenderFrameObserver::OnMessageReceived(const IPC::Message& message) {
     return false;
 
   IPC_BEGIN_MESSAGE_MAP(ChromeRenderFrameObserver, message)
+    IPC_MESSAGE_HANDLER(ChromeViewMsg_RequestReloadImageForContextNode,
+                        OnRequestReloadImageForContextNode)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_RequestThumbnailForContextNode,
                         OnRequestThumbnailForContextNode)
     IPC_MESSAGE_HANDLER(PrintMsg_PrintNodeUnderContextMenu,
@@ -123,6 +126,14 @@ void ChromeRenderFrameObserver::OnSetIsPrerendering(bool is_prerendering) {
   }
 }
 
+void ChromeRenderFrameObserver::OnRequestReloadImageForContextNode() {
+  WebNode context_node = render_frame()->GetContextMenuNode();
+  if (!context_node.isNull() && context_node.isElementNode() &&
+      render_frame()->GetWebFrame()) {
+    render_frame()->GetWebFrame()->reloadImage(context_node);
+  }
+}
+
 void ChromeRenderFrameObserver::OnRequestThumbnailForContextNode(
     int thumbnail_min_area_pixels,
     const gfx::Size& thumbnail_max_size_pixels) {