Remove dependency of infobars component on the embedder

components/infobars/core/infobar_manager.h

Index: components/infobars/core/infobar_manager.h
diff --git a/components/infobars/core/infobar_manager.h b/components/infobars/core/infobar_manager.h
index 532566ef6621e32761c1662d8050351829e1b6d1..5685a030316e17e7d189a913a4317fce2685cc9c 100644
--- a/components/infobars/core/infobar_manager.h
+++ b/components/infobars/core/infobar_manager.h
@@ -11,6 +11,8 @@
 #include "base/observer_list.h"
 #include "components/infobars/core/infobar_delegate.h"
 
+class ConfirmInfoBarDelegate;
+
 namespace content {
 class WebContents;
 }
@@ -94,6 +96,10 @@ class InfoBarManager {
   // Returns the active entry ID.
   virtual int GetActiveEntryID() = 0;
 
+  // Returns a confirm infobar that owns |delegate|.
+  virtual scoped_ptr<infobars::InfoBar> CreateConfirmInfoBar(
+      scoped_ptr<ConfirmInfoBarDelegate> delegate) = 0;
+
  protected:
   // Notifies the observer in |observer_list_|.
   // TODO(droger): Absorb these methods back into their callers once virtual