Delete the old extension-based script bubble.

chrome/browser/extensions/component_loader.cc

Index: chrome/browser/extensions/component_loader.cc
===================================================================
--- chrome/browser/extensions/component_loader.cc	(revision 170599)
+++ chrome/browser/extensions/component_loader.cc	(working copy)
@@ -20,7 +20,6 @@
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_file_util.h"
 #include "chrome/common/extensions/extension_manifest_constants.h"
-#include "chrome/common/extensions/feature_switch.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
@@ -89,13 +88,6 @@
   ClearAllRegistered();
 }
 
-const Extension* ComponentLoader::GetScriptBubble() const {
-  if (script_bubble_id_.empty())
-    return NULL;
-
-  return extension_service_->extensions()->GetByID(script_bubble_id_);
-}
-
 void ComponentLoader::LoadAll() {
   for (RegisteredComponentExtensions::iterator it =
           component_extensions_.begin();
@@ -313,14 +305,6 @@
 #endif
 }
 
-void ComponentLoader::AddScriptBubble() {
-  if (FeatureSwitch::script_bubble()->IsEnabled()) {
-    script_bubble_id_ =
-        Add(IDR_SCRIPT_BUBBLE_MANIFEST,
-            FilePath(FILE_PATH_LITERAL("script_bubble")));
-  }
-}
-
 // static
 void ComponentLoader::EnableBackgroundExtensionsForTesting() {
   enable_background_extensions_during_testing = true;
@@ -382,7 +366,6 @@
   AddChromeApp();
 #endif
 
-  AddScriptBubble();
   AddDefaultComponentExtensionsWithBackgroundPages();
 }