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

chrome/renderer/chrome_content_renderer_client.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/chrome_content_renderer_client.h"
 
 #include "base/command_line.h"
 #include "base/debug/crash_logging.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
@@ skipping 63 matching lines @@
 #include "content/public/renderer/render_view.h"
 #include "content/public/renderer/render_view_visitor.h"
 #include "extensions/common/constants.h"
 #include "ipc/ipc_sync_channel.h"
 #include "net/base/net_errors.h"
 #include "ppapi/c/private/ppb_pdf.h"
 #include "ppapi/shared_impl/ppapi_switches.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/WebKit/public/platform/WebURLError.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
+#include "third_party/WebKit/public/platform/WebURLResponse.h"
 #include "third_party/WebKit/public/web/WebCache.h"
 #include "third_party/WebKit/public/web/WebDataSource.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebElement.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebPluginContainer.h"
 #include "third_party/WebKit/public/web/WebPluginParams.h"
 #include "third_party/WebKit/public/web/WebPluginPlaceholder.h"
 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
 #include "third_party/WebKit/public/web/WebSecurityPolicy.h"
@@ skipping 1542 matching lines @@
 
 void ChromeContentRendererClient::RecordRappor(const std::string& metric,
                                                const std::string& sample) {
   RenderThread::Get()->Send(new ChromeViewHostMsg_RecordRappor(metric, sample));
 }
 
 void ChromeContentRendererClient::RecordRapporURL(const std::string& metric,
                                                   const GURL& url) {
   RenderThread::Get()->Send(new ChromeViewHostMsg_RecordRapporURL(metric, url));
 }
+
+
+void ChromeContentRendererClient::AddContextMenuProperties(
+    const blink::WebURLResponse& response,
+    std::map<std::string, std::string>* properties) {
+  DCHECK(properties);
+  const char lo_fi_header_key[] = "Chrome-Proxy";

[Lei Zhang, 2015/05/13 23:50:19]

Aren't the same values also seen in RenderViewContextMenu::AppendImageItems()
and DataReductionProxyRequestOptions::SetHeader() ?

[megjablon, 2015/05/14 19:26:25]

They're used little different in DRPRequestOptions.
@bengr can you suggest a good place to put these?

+  const char lo_fi_header_value[] = "q=low";
+  WebString header_key(ASCIIToUTF16(lo_fi_header_key));
+  if (!response.httpHeaderField(header_key).isNull() &&
+      response.httpHeaderField(header_key).utf8().find(lo_fi_header_value) !=
+          std::string::npos) {
+    (*properties)[lo_fi_header_key] = lo_fi_header_value;
+  }
+}