Fix a bug where an extension's icon was not being properly updated.

chrome/browser/ui/webui/extensions/extension_basic_info.cc

Index: chrome/browser/ui/webui/extensions/extension_basic_info.cc
diff --git a/chrome/browser/ui/webui/extensions/extension_basic_info.cc b/chrome/browser/ui/webui/extensions/extension_basic_info.cc
index 606ee2bde0bce9b5d0870588036b0d7f0bf12b33..bd5ed6042f373c6985b40a2bf0aac22e21d1466f 100644
--- a/chrome/browser/ui/webui/extensions/extension_basic_info.cc
+++ b/chrome/browser/ui/webui/extensions/extension_basic_info.cc
@@ -24,6 +24,7 @@ const char kOptionsUrlKey[] = "optionsUrl";
 const char kDetailsUrlKey[] = "detailsUrl";
 const char kVersionKey[] = "version";
 const char kPackagedAppKey[] = "packagedApp";
+const char kImageId[] = "imageId";
 
 }  // namespace
 
@@ -51,6 +52,7 @@ void GetExtensionBasicInfo(const Extension* extension,
       kDetailsUrlKey,
       ManifestURL::GetDetailsURL(extension).possibly_invalid_spec());
   info->SetBoolean(kPackagedAppKey, extension->is_platform_app());
+  info->SetInteger(kImageId, extension->image_id());
 }
 
 }  // namespace extensions