[Reland] [Extensions] Make extension message bubble factory platform-abstract

chrome/browser/extensions/ntp_overridden_bubble_controller.cc

Index: chrome/browser/extensions/ntp_overridden_bubble_controller.cc
diff --git a/chrome/browser/extensions/ntp_overridden_bubble_controller.cc b/chrome/browser/extensions/ntp_overridden_bubble_controller.cc
index bec4ed3c628957158975f14975519ec330d9a571..317b7bae84dc03e7be794a0eee09db1ae85c251b 100644
--- a/chrome/browser/extensions/ntp_overridden_bubble_controller.cc
+++ b/chrome/browser/extensions/ntp_overridden_bubble_controller.cc
@@ -47,6 +47,7 @@ class NtpOverriddenBubbleDelegate
   base::string16 GetActionButtonLabel() const override;
   base::string16 GetDismissButtonLabel() const override;
   bool ShouldShowExtensionList() const override;
+  bool ShouldHighlightExtensions() const override;
   void RestrictToSingleExtension(const std::string& extension_id) override;
   void LogExtensionCount(size_t count) override;
   void LogAction(extensions::ExtensionMessageBubbleController::BubbleAction
@@ -142,6 +143,10 @@ bool NtpOverriddenBubbleDelegate::ShouldShowExtensionList() const {
   return false;
 }
 
+bool NtpOverriddenBubbleDelegate::ShouldHighlightExtensions() const {
+  return false;
+}
+
 void NtpOverriddenBubbleDelegate::RestrictToSingleExtension(
     const std::string& extension_id) {
   extension_id_ = extension_id;