Add a flag for the showing the Page Info dialog as a bubble. This adds stubs for all platforms.

chrome/browser/views/frame/browser_view.cc

Index: chrome/browser/views/frame/browser_view.cc
diff --git a/chrome/browser/views/frame/browser_view.cc b/chrome/browser/views/frame/browser_view.cc
index 39c19204c9042d49ddb05d1cc25c3a9362922e4a..04fa4e7a0efc98741ede1cc6dd321c585d467520 100644
--- a/chrome/browser/views/frame/browser_view.cc
+++ b/chrome/browser/views/frame/browser_view.cc
@@ -1265,11 +1265,11 @@ void BrowserView::ShowPageInfo(Profile* profile,
   parent = GetNormalBrowserWindowForBrowser(browser(), profile);
 #endif  // defined(OS_CHROMEOS)
 
-#if defined(OS_WINDOWS)
-  browser::ShowPageInfoBubble(parent, profile, url, ssl, show_history);
-#else
-  browser::ShowPageInfo(parent, profile, url, ssl, show_history);
-#endif
+  const CommandLine* command_line(CommandLine::ForCurrentProcess());
+  if (command_line->HasSwitch(switches::kEnableNewPageInfoBubble))
+    browser::ShowPageInfoBubble(parent, profile, url, ssl, show_history);
+  else
+    browser::ShowPageInfo(parent, profile, url, ssl, show_history);
 }
 
 void BrowserView::ShowAppMenu() {