Revert of [Extensions] Make extension message bubble factory platform-abstract

chrome/browser/extensions/suspicious_extension_bubble_controller.cc

Index: chrome/browser/extensions/suspicious_extension_bubble_controller.cc
diff --git a/chrome/browser/extensions/suspicious_extension_bubble_controller.cc b/chrome/browser/extensions/suspicious_extension_bubble_controller.cc
index 94d189fe350ca6de1171cec56fedc6482083e5a2..da364b2781e949169ad996e51bf43cb25f363639 100644
--- a/chrome/browser/extensions/suspicious_extension_bubble_controller.cc
+++ b/chrome/browser/extensions/suspicious_extension_bubble_controller.cc
@@ -53,7 +53,6 @@
   base::string16 GetActionButtonLabel() const override;
   base::string16 GetDismissButtonLabel() const override;
   bool ShouldShowExtensionList() const override;
-  bool ShouldHighlightExtensions() const override;
   void LogExtensionCount(size_t count) override;
   void LogAction(
       ExtensionMessageBubbleController::BubbleAction action) override;
@@ -127,12 +126,9 @@
   return l10n_util::GetStringUTF16(IDS_EXTENSIONS_UNSUPPORTED_DISABLED_BUTTON);
 }
 
-bool SuspiciousExtensionBubbleDelegate::ShouldShowExtensionList() const {
+bool
+SuspiciousExtensionBubbleDelegate::ShouldShowExtensionList() const {
   return true;
-}
-
-bool SuspiciousExtensionBubbleDelegate::ShouldHighlightExtensions() const {
-  return false;
 }
 
 void SuspiciousExtensionBubbleDelegate::LogExtensionCount(