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

chrome/browser/extensions/extension_message_bubble.h

Index: chrome/browser/extensions/extension_message_bubble.h
diff --git a/chrome/browser/extensions/extension_message_bubble.h b/chrome/browser/extensions/extension_message_bubble.h
index 71d6e30eb8c5872f466b6d2a6996afe8b8c4869a..3819a82f8c169280f2c8b17d711a9fa7bf517500 100644
--- a/chrome/browser/extensions/extension_message_bubble.h
+++ b/chrome/browser/extensions/extension_message_bubble.h
@@ -15,16 +15,6 @@ namespace extensions {
 // controller.
 class ExtensionMessageBubble {
  public:
-  // Setup the callback for when the action button is clicked in the
-  // bubble.
-  virtual void OnActionButtonClicked(const base::Closure& callback) = 0;
-
-  // Setup the callback for when the dismiss button is clicked.
-  virtual void OnDismissButtonClicked(const base::Closure& callback) = 0;
-
-  // Setup the callback for when the link is clicked in the bubble.
-  virtual void OnLinkClicked(const base::Closure& callback) = 0;
-
   // Instruct the bubble to appear.
   virtual void Show() = 0;
 };