Show confirmation dialog for unsecure signin

chrome/browser/ui/webui/signin/inline_login_ui.h

Index: chrome/browser/ui/webui/signin/inline_login_ui.h
diff --git a/chrome/browser/ui/webui/signin/inline_login_ui.h b/chrome/browser/ui/webui/signin/inline_login_ui.h
index 32a45c35979ff0167428cfaf3ee991449756f42e..3842fb70aace7233e480410839739da9b37185e7 100644
--- a/chrome/browser/ui/webui/signin/inline_login_ui.h
+++ b/chrome/browser/ui/webui/signin/inline_login_ui.h
@@ -8,6 +8,10 @@
 #include "chrome/browser/extensions/signin/scoped_gaia_auth_extension.h"
 #include "ui/web_dialogs/web_dialog_ui.h"
 
+namespace content {
+class RenderFrameHost;
+}
+
 // Inline login WebUI in various signin flows for ChromeOS and Chrome desktop.
 // The authentication is carried out via the host gaia_auth extension. Upon
 // success, the profile of the webui should be populated with proper cookies.
@@ -17,6 +21,12 @@ class InlineLoginUI : public ui::WebDialogUI {
   explicit InlineLoginUI(content::WebUI* web_ui);
   virtual ~InlineLoginUI();
 
+  // Gets the iframe within a WebContents that has the specified parent origin
+  // if |parent_origin| is not NULL, and the specified parent frame name.
+  static content::RenderFrameHost* GetGaiaAuthIframe(
+      content::WebContents* web_contents,
+      const GURL* parent_origin,
+      const std::string& parent_frame_name);
  private:
   ScopedGaiaAuthExtension auth_extension_;