Options: disallow bad URLs from being entered as startup pages

chrome/browser/ui/webui/settings_utils.h

Index: chrome/browser/ui/webui/settings_utils.h
diff --git a/chrome/browser/ui/webui/settings_utils.h b/chrome/browser/ui/webui/settings_utils.h
index 9f95aa4fc770258bd493df559e0573dd5758cd7f..1f198ccf1838e36d343de8b465e0b5e46e386d2d 100644
--- a/chrome/browser/ui/webui/settings_utils.h
+++ b/chrome/browser/ui/webui/settings_utils.h
@@ -5,8 +5,12 @@
 #ifndef CHROME_BROWSER_UI_WEBUI_SETTINGS_UTILS_H_
 #define CHROME_BROWSER_UI_WEBUI_SETTINGS_UTILS_H_
 
+#include <string>
+
 #include "base/macros.h"
 
+class GURL;
+
 namespace content {
 class WebContents;
 }
@@ -19,6 +23,11 @@ void ShowNetworkProxySettings(content::WebContents* web_contents);
 // Invoke UI for SSL certificates.
 void ShowManageSSLCertificates(content::WebContents* web_contents);
 
+// Returns whether |url_string| is a valid startup page. |url_fixed| is set to
+// the fixed up, valid URL if not null.
+bool FixupAndValidateStartupPage(const std::string& url_string,
+                                 GURL* url_fixed);
+
 }  // namespace settings_utils
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SETTINGS_UTILS_H_