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

content/renderer/renderer_blink_platform_impl.cc

Index: content/renderer/renderer_blink_platform_impl.cc
diff --git a/content/renderer/renderer_blink_platform_impl.cc b/content/renderer/renderer_blink_platform_impl.cc
index 376d3a0c68a4eac8be7a2e5db04df70522f1697e..ab9edcdd853ff4e72cf22609040433f8de0a88ae 100644
--- a/content/renderer/renderer_blink_platform_impl.cc
+++ b/content/renderer/renderer_blink_platform_impl.cc
@@ -805,12 +805,15 @@ blink::WebMIDIAccessor* RendererBlinkPlatformImpl::createMIDIAccessor(
 
 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,