[HBD] Call PurgePluginListCache() whenever plugin content settings change

chrome/browser/plugins/chrome_plugin_service_filter.h

Index: chrome/browser/plugins/chrome_plugin_service_filter.h
diff --git a/chrome/browser/plugins/chrome_plugin_service_filter.h b/chrome/browser/plugins/chrome_plugin_service_filter.h
index f3876e145a6ed4307b0d7a47c37183b874932599..eaffc59fc744bb789086a1e26702ce8d5624eb72 100644
--- a/chrome/browser/plugins/chrome_plugin_service_filter.h
+++ b/chrome/browser/plugins/chrome_plugin_service_filter.h
@@ -6,7 +6,9 @@
 #define CHROME_BROWSER_PLUGINS_CHROME_PLUGIN_SERVICE_FILTER_H_
 
 #include <map>
+#include <memory>
 #include <set>
+#include <string>
 #include <vector>
 
 #include "base/containers/hash_tables.h"
@@ -40,6 +42,7 @@ class ChromePluginServiceFilter : public content::PluginServiceFilter,
   void RegisterResourceContext(
       scoped_refptr<PluginPrefs> plugin_prefs,
       scoped_refptr<HostContentSettingsMap> host_content_settings_map,
+      Profile* profile,
       const void* context);
 
   void UnregisterResourceContext(const void* context);
@@ -77,6 +80,8 @@ class ChromePluginServiceFilter : public content::PluginServiceFilter,
                      const base::FilePath& path) override;
 
  private:
+  class ProfileContentSettingObserver;

[tommycli, 2016/08/15 19:25:11]

I think this can just be a class within the anonymous namespace within the cc
file. (Not an inner class)

[trizzofo, 2016/08/15 20:35:58]

Done.

+  struct ContextInfo;
   friend struct base::DefaultSingletonTraits<ChromePluginServiceFilter>;
 
   struct OverriddenPlugin {
@@ -111,11 +116,8 @@ class ChromePluginServiceFilter : public content::PluginServiceFilter,
   content::NotificationRegistrar registrar_;
 
   base::Lock lock_;  // Guards access to member variables.
-  typedef std::map<const void*, scoped_refptr<PluginPrefs> > ResourceContextMap;
-  ResourceContextMap plugin_prefs_;
 
-  std::map<const void*, scoped_refptr<HostContentSettingsMap>>
-      host_content_settings_maps_;
+  std::map<const void*, std::unique_ptr<ContextInfo>> resource_context_map_;
 
   std::map<int, ProcessDetails> plugin_details_;
 };