[MD settings] edit content settings exceptions

chrome/browser/resources/settings/site_settings/site_list.js

Index: chrome/browser/resources/settings/site_settings/site_list.js
diff --git a/chrome/browser/resources/settings/site_settings/site_list.js b/chrome/browser/resources/settings/site_settings/site_list.js
index ddfe126cdc39b67ca6031d504ffb471c3b4fa723..f692d1adf0f03a4ff60bf20cad737e427a4483a0 100644
--- a/chrome/browser/resources/settings/site_settings/site_list.js
+++ b/chrome/browser/resources/settings/site_settings/site_list.js
@@ -391,8 +391,19 @@ Polymer({
     this.showSessionOnlyAction_ =
         this.categorySubtype != settings.PermissionValues.SESSION_ONLY &&
         this.category == settings.ContentSettingsTypes.COOKIES;
+    /* Note: the following types are intentinally omitted: CAMERA, GEOLOCATION,
+     * MIC, MIDI_DEVICES, PROTECTED_CONTENT, PROTOCOL_HANDLERS, USB_DEVICES,
+     * ZOOM_LEVELS. */
     this.showEditAction_ =
-        this.category == settings.ContentSettingsTypes.COOKIES;
+        this.category == settings.ContentSettingsTypes.AUTOMATIC_DOWNLOADS ||
+        this.category == settings.ContentSettingsTypes.BACKGROUND_SYNC ||
+        this.category == settings.ContentSettingsTypes.COOKIES ||
+        this.category == settings.ContentSettingsTypes.IMAGES ||
+        this.category == settings.ContentSettingsTypes.JAVASCRIPT ||
+        this.category == settings.ContentSettingsTypes.NOTIFICATIONS ||
+        this.category == settings.ContentSettingsTypes.PLUGINS ||
+        this.category == settings.ContentSettingsTypes.POPUPS ||
+        this.category == settings.ContentSettingsTypes.UNSANDBOXED_PLUGINS;

[dschuyler, 2017/03/18 00:36:11]

Hmm, I could convert this to a dictionary and to a single map lookup, but I'm
concerned for the startup performance cost if I made that outside of this
function -- and it would be a wash if the map were set up right here.

I'd rather make this data driven in the html. I'll look into that.

   },
 
   /**