[HBD] Add an Enable Flash context menu item for HBD placeholders.

chrome/renderer/plugins/chrome_plugin_placeholder.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/renderer/plugins/chrome_plugin_placeholder.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 295 matching lines @@
       MarkPluginEssential(
           content::PluginInstanceThrottler::UNTHROTTLE_METHOD_BY_CLICK);
       LoadPlugin();
       break;
     }
     case chrome::MENU_COMMAND_PLUGIN_HIDE: {
       RenderThread::Get()->RecordAction(UserMetricsAction("Plugin_Hide_Menu"));
       HidePlugin();
       break;
     }
+    case chrome::MENU_COMMAND_ENABLE_FLASH: {
+      ShowPermissionBubbleCallback();
+      break;
+    }
     default:
       NOTREACHED();
   }
 }
 
 void ChromePluginPlaceholder::OnMenuClosed(int request_id) {
   DCHECK_EQ(context_menu_request_id_, request_id);
   context_menu_request_id_ = 0;
 }
 
@@ skipping 12 matching lines @@
   if (!title_.empty()) {
     content::MenuItem name_item;
     name_item.label = title_;
     params.custom_items.push_back(name_item);
 
     content::MenuItem separator_item;
     separator_item.type = content::MenuItem::SEPARATOR;
     params.custom_items.push_back(separator_item);
   }
 
-  if (!GetPluginInfo().path.value().empty()) {
+  bool flash_hidden =
+      status_ == ChromeViewHostMsg_GetPluginInfo_Status::kFlashHiddenPreferHtml;
+  if (!GetPluginInfo().path.value().empty() && !flash_hidden) {
     content::MenuItem run_item;
     run_item.action = chrome::MENU_COMMAND_PLUGIN_RUN;
     // Disable this menu item if the plugin is blocked by policy.
     run_item.enabled = LoadingAllowed();
     run_item.label = l10n_util::GetStringUTF16(IDS_CONTENT_CONTEXT_PLUGIN_RUN);
     params.custom_items.push_back(run_item);
   }
 
+  if (flash_hidden) {
+    content::MenuItem enable_flash_item;
+    enable_flash_item.action = chrome::MENU_COMMAND_ENABLE_FLASH;
+    enable_flash_item.enabled = true;
+    enable_flash_item.label =
+        l10n_util::GetStringUTF16(IDS_CONTENT_CONTEXT_ENABLE_FLASH);
+    params.custom_items.push_back(enable_flash_item);
+  }
+
   content::MenuItem hide_item;
   hide_item.action = chrome::MENU_COMMAND_PLUGIN_HIDE;
   bool is_main_frame_plugin_document =
       GetFrame()->view()->mainFrame()->isWebLocalFrame() &&
       GetFrame()->view()->mainFrame()->document().isPluginDocument();
   hide_item.enabled = !is_main_frame_plugin_document;
   hide_item.label = l10n_util::GetStringUTF16(IDS_CONTENT_CONTEXT_PLUGIN_HIDE);
   params.custom_items.push_back(hide_item);
 
   params.x = event.windowX;
@@ skipping 46 matching lines @@
 
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnablePluginPlaceholderTesting)) {
     builder.SetMethod<void (ChromePluginPlaceholder::*)()>(
         "didFinishIconRepositionForTesting",
         &ChromePluginPlaceholder::DidFinishIconRepositionForTestingCallback);
   }
 
   return builder;
 }