Add a check to the registry before the intent infobar is shown.

chrome/browser/intents/register_intent_handler_infobar_delegate.h

Index: chrome/browser/intents/register_intent_handler_infobar_delegate.h
diff --git a/chrome/browser/intents/register_intent_handler_infobar_delegate.h b/chrome/browser/intents/register_intent_handler_infobar_delegate.h
index 83ae2fa75956d7e52a58bbd96740db7b0a8a7c24..52158cf7075d9aa7c8b0904a9ae95c48249f47ed 100644
--- a/chrome/browser/intents/register_intent_handler_infobar_delegate.h
+++ b/chrome/browser/intents/register_intent_handler_infobar_delegate.h
@@ -11,6 +11,7 @@
 #include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
 #include "webkit/glue/web_intent_service_data.h"
 
+class InfoBarTabHelper;
 class TabContents;
 class WebIntentsRegistry;
 
@@ -30,6 +31,13 @@ class RegisterIntentHandlerInfoBarDelegate : public ConfirmInfoBarDelegate {
   virtual string16 GetLinkText() const OVERRIDE;
   virtual bool LinkClicked(WindowOpenDisposition disposition) OVERRIDE;
 
+  // This helper method checks the registry to see if the indicated service has
+  // already been registered. If all registration details are the same, it does
+  // not show the infobar.
+  static void MaybeShowIntentInfoBar(InfoBarTabHelper* infobar_helper,

[James Hawkins, 2011/10/05 18:37:12]

Document all the params.

[Greg Billock, 2011/10/05 22:19:02]

Done.

+                                     WebIntentsRegistry* registry,
+                                     const WebIntentServiceData& service);
+
  private:
   // The web intents registry to use. Weak pointer.
   WebIntentsRegistry* registry_;