Change infobar creation to use a public static Create() method on the infobar delegate classes.

chrome/browser/infobars/insecure_content_infobar_delegate.cc

Index: chrome/browser/infobars/insecure_content_infobar_delegate.cc
===================================================================
--- chrome/browser/infobars/insecure_content_infobar_delegate.cc	(revision 175396)
+++ chrome/browser/infobars/insecure_content_infobar_delegate.cc	(working copy)
@@ -16,14 +16,37 @@
 
 using content::OpenURLParams;
 
+// static
+void InsecureContentInfoBarDelegate::Create(InfoBarService* infobar_service,
+                                            InfoBarType type) {
+  scoped_ptr<InfoBarDelegate> new_infobar(
+      new InsecureContentInfoBarDelegate(infobar_service, type));
+
+  // Only supsersede an existing insecure content infobar if we are upgrading
+  // from DISPLAY to RUN.
+  for (size_t i = 0; i < infobar_service->GetInfoBarCount(); ++i) {
+    InsecureContentInfoBarDelegate* delegate = infobar_service->
+        GetInfoBarDelegateAt(i)->AsInsecureContentInfoBarDelegate();
+    if (delegate != NULL) {
+      if ((type == RUN) && (delegate->type_ == DISPLAY))
+        return;
+      infobar_service->ReplaceInfoBar(delegate, new_infobar.Pass());
+      break;
+    }
+  }
+  if (new_infobar.get())
+    infobar_service->AddInfoBar(new_infobar.Pass());
+
+  UMA_HISTOGRAM_ENUMERATION("InsecureContentInfoBarDelegateV2",
+      (type == DISPLAY) ? DISPLAY_INFOBAR_SHOWN : RUN_INFOBAR_SHOWN,
+      NUM_EVENTS);
+}
+
 InsecureContentInfoBarDelegate::InsecureContentInfoBarDelegate(
     InfoBarService* infobar_service,
     InfoBarType type)
     : ConfirmInfoBarDelegate(infobar_service),
       type_(type) {
-  UMA_HISTOGRAM_ENUMERATION("InsecureContentInfoBarDelegateV2",
-      (type_ == DISPLAY) ? DISPLAY_INFOBAR_SHOWN : RUN_INFOBAR_SHOWN,
-      NUM_EVENTS);
 }
 
 InsecureContentInfoBarDelegate::~InsecureContentInfoBarDelegate() {