Eliminate InfoBarTabHelper. Make InfoBarService a concrete class.

chrome/browser/geolocation/geolocation_browsertest.cc

Index: chrome/browser/geolocation/geolocation_browsertest.cc
===================================================================
--- chrome/browser/geolocation/geolocation_browsertest.cc	(revision 195254)
+++ chrome/browser/geolocation/geolocation_browsertest.cc	(working copy)
@@ -583,10 +583,10 @@
 
   InfoBarService* infobar_service = InfoBarService::FromWebContents(
       current_browser_->tab_strip_model()->GetActiveWebContents());
-  size_t num_infobars_before_cancel = infobar_service->GetInfoBarCount();
+  size_t num_infobars_before_cancel = infobar_service->infobar_count();
   // Change the iframe, and ensure the infobar is gone.
   IFrameLoader change_iframe_1(current_browser_, 1, current_url_);
-  size_t num_infobars_after_cancel = infobar_service->GetInfoBarCount();
+  size_t num_infobars_after_cancel = infobar_service->infobar_count();
   EXPECT_EQ(num_infobars_before_cancel, num_infobars_after_cancel + 1);
 }