[Mac] Convert the page info window to a bubble.

chrome/browser/cocoa/page_info_window_mac.mm

Index: chrome/browser/cocoa/page_info_window_mac.mm
diff --git a/chrome/browser/cocoa/page_info_window_mac.mm b/chrome/browser/cocoa/page_info_window_mac.mm
index c98e357e64232013f9c9dad4e44cec18472a57f8..8ca4c1b635611ea788600e61839bb397a08ffc42 100644
--- a/chrome/browser/cocoa/page_info_window_mac.mm
+++ b/chrome/browser/cocoa/page_info_window_mac.mm
@@ -57,14 +57,6 @@ void ShowPageInfo(gfx::NativeWindow parent,
   PageInfoWindowMac::ShowPageInfo(parent, profile, url, ssl, show_history);
 }
 
-void ShowPageInfoBubble(gfx::NativeWindow parent,
-                        Profile* profile,
-                        const GURL& url,
-                        const NavigationEntry::SSLStatus& ssl,
-                        bool show_history) {
-  NOTIMPLEMENTED();
-}
-
 }  // namespace browser
 
 PageInfoWindowMac::PageInfoWindowMac(PageInfoWindowController* controller,