[HBD] Remove PluginCache and reload plugin list when origin changes

content/renderer/renderer_blink_platform_impl.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 "content/renderer/renderer_blink_platform_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 787 matching lines @@
   blink::WebMIDIAccessor* accessor =
       GetContentClient()->renderer()->OverrideCreateMIDIAccessor(client);
   if (accessor)
     return accessor;
 
   return new RendererWebMIDIAccessorImpl(client);
 }
 
 void RendererBlinkPlatformImpl::getPluginList(
     bool refresh,
+    const blink::WebSecurityOrigin& mainFrameOrigin,
     blink::WebPluginListBuilder* builder) {
 #if defined(ENABLE_PLUGINS)
   std::vector<WebPluginInfo> plugins;
   if (!plugin_refresh_allowed_)
     refresh = false;
-  RenderThread::Get()->Send(new FrameHostMsg_GetPlugins(refresh, &plugins));
+  url::Origin main_frame_origin = url::Origin(mainFrameOrigin);

[alexmos, 2016/08/04 05:32:03]

Does "url::Origin main_frame_origin(mainFrameOrigin)" not work?  Or just
directly passing mainFrameOrigin into FrameHostMsg_GetPlugins constructor below,
since there's a conversion operator defined for WebSecurityOrigin ->
url::Origin.

[trizzofo, 2016/08/05 02:04:26]

Done. Thanks!

+  RenderThread::Get()->Send(
+      new FrameHostMsg_GetPlugins(refresh, main_frame_origin, &plugins));
   for (const WebPluginInfo& plugin : plugins) {
     builder->addPlugin(
         plugin.name, plugin.desc,
         plugin.path.BaseName().AsUTF16Unsafe());
 
     for (const WebPluginMimeType& mime_type : plugin.mime_types) {
       builder->addMediaTypeToLastPlugin(
           WebString::fromUTF8(mime_type.mime_type), mime_type.description);
 
       for (const auto& extension : mime_type.file_extensions) {
@@ skipping 492 matching lines @@
   return &trial_token_validator_;
 }
 
 void RendererBlinkPlatformImpl::workerContextCreated(
     const v8::Local<v8::Context>& worker) {
   GetContentClient()->renderer()->DidInitializeWorkerContextOnWorkerThread(
       worker);
 }
 
 }  // namespace content