Introduce InfoBarTabService API.

chrome/browser/api/infobars/infobar_delegate.cc

Index: chrome/browser/api/infobars/infobar_delegate.cc
diff --git a/chrome/browser/api/infobars/infobar_delegate.cc b/chrome/browser/api/infobars/infobar_delegate.cc
index 69f66251c316d26ef9e7788fa7a71a03644ee291..fa401ac5f06bf1b1e694dd9830da8ca3474fdf4b 100644
--- a/chrome/browser/api/infobars/infobar_delegate.cc
+++ b/chrome/browser/api/infobars/infobar_delegate.cc
@@ -6,7 +6,7 @@
 
 #include "base/logging.h"
 #include "build/build_config.h"
-#include "chrome/browser/infobars/infobar_tab_helper.h"
+#include "chrome/browser/api/infobars/infobar_tab_service.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
@@ -90,17 +90,17 @@ TranslateInfoBarDelegate* InfoBarDelegate::AsTranslateInfoBarDelegate() {
   return NULL;
 }
 
-InfoBarDelegate::InfoBarDelegate(InfoBarTabHelper* infobar_helper)
+InfoBarDelegate::InfoBarDelegate(InfoBarTabService* infobar_service)
     : contents_unique_id_(0),
-      owner_(infobar_helper) {
-  if (infobar_helper)
-    StoreActiveEntryUniqueID(infobar_helper);
+      owner_(infobar_service) {
+  if (infobar_service)
+    StoreActiveEntryUniqueID(infobar_service);
 }
 
 void InfoBarDelegate::StoreActiveEntryUniqueID(
-    InfoBarTabHelper* infobar_helper) {
+    InfoBarTabService* infobar_service) {
   NavigationEntry* active_entry =
-      infobar_helper->web_contents()->GetController().GetActiveEntry();
+      infobar_service->GetWebContents()->GetController().GetActiveEntry();
   contents_unique_id_ = active_entry ? active_entry->GetUniqueID() : 0;
 }