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

chrome/browser/ui/android/context_menu_helper.cc

 // Copyright 2013 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/browser/ui/android/context_menu_helper.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "content/public/browser/android/content_view_core.h"
 #include "content/public/browser/android/download_controller_android.h"
@@ skipping 57 matching lines @@
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_ContextMenuHelper_setPopulator(env, java_obj_.obj(), jpopulator);
 }
 
 base::android::ScopedJavaLocalRef<jobject>
 ContextMenuHelper::CreateJavaContextMenuParams(
     const content::ContextMenuParams& params) {
   GURL sanitizedReferrer = (params.frame_url.is_empty() ?
       params.page_url : params.frame_url).GetAsReferrer();
 
+  static const char lo_fi_header_key[] = "Chrome-Proxy";
+  static const char lo_fi_header_value[] = "q=low";
+  std::map<std::string, std::string>::const_iterator it =
+      params.properties.find(lo_fi_header_key);
+  bool image_was_fetched_lo_fi =
+      it != params.properties.end() && it->second == lo_fi_header_value;
+
   JNIEnv* env = base::android::AttachCurrentThread();
   base::android::ScopedJavaLocalRef<jobject> jmenu_info =
       ContextMenuParamsAndroid::Java_ContextMenuParams_create(
           env,
           params.media_type,
           ConvertUTF8ToJavaString(env, params.link_url.spec()).obj(),
           ConvertUTF16ToJavaString(env, params.link_text).obj(),
           ConvertUTF8ToJavaString(env, params.unfiltered_link_url.spec()).obj(),
           ConvertUTF8ToJavaString(env, params.src_url.spec()).obj(),
           ConvertUTF16ToJavaString(env, params.selection_text).obj(),
+          image_was_fetched_lo_fi,
           params.is_editable,
           ConvertUTF8ToJavaString(env, sanitizedReferrer.spec()).obj(),
           params.referrer_policy);
 
   std::vector<content::MenuItem>::const_iterator i;
   for (i = params.custom_items.begin(); i != params.custom_items.end(); ++i) {
     ContextMenuParamsAndroid::Java_ContextMenuParams_addCustomItem(
         env,
         jmenu_info.obj(),
         ConvertUTF16ToJavaString(env, i->label).obj(),
@@ skipping 18 matching lines @@
   content::DownloadControllerAndroid::Get()->StartContextMenuDownload(
       context_menu_params_,
       web_contents_,
       jis_link);
 }
 
 bool RegisterContextMenuHelper(JNIEnv* env) {
   return RegisterNativesImpl(env) &&
          ContextMenuParamsAndroid::RegisterNativesImpl(env);
 }