Add flag to show toolkit-views dialogs on Mac, start with HTTP-Auth.

chrome/browser/ui/browser_dialogs.h

Index: chrome/browser/ui/browser_dialogs.h
diff --git a/chrome/browser/ui/browser_dialogs.h b/chrome/browser/ui/browser_dialogs.h
index 05f4e37991ba9e52fa5c6e9b1bd1d102e5682be0..f83ddbe0b3584b3d1360e032f48b9a2ea88ceebf 100644
--- a/chrome/browser/ui/browser_dialogs.h
+++ b/chrome/browser/ui/browser_dialogs.h
@@ -10,6 +10,7 @@
 #include "ui/gfx/native_widget_types.h"
 
 class Browser;
+class LoginHandler;
 class Profile;
 class SkBitmap;
 
@@ -23,6 +24,11 @@ namespace extensions {
 class Extension;
 }
 
+namespace net {
+class AuthChallengeInfo;
+class URLRequest;
+}
+
 namespace ui {
 class WebDialogDelegate;
 }
@@ -69,6 +75,22 @@ void ShowCreateChromeAppShortcutsDialog(
 content::ColorChooser* ShowColorChooser(content::WebContents* web_contents,
                                         SkColor initial_color);
 
+#if defined(OS_MACOSX)
+
+// For Mac, returns true if Chrome should show an equivalent toolkit-views based
+// dialog using one of the functions below, rather than showing a Cocoa dialog.
+bool ToolkitViewsDialogsEnabled();
+
+#endif  // OS_MACOSX
+
+#if defined(TOOLKIT_VIEWS)
+
+// Creates a toolkit-views based LoginHandler (e.g. HTTP-Auth dialog).
+LoginHandler* CreateLoginHandlerViews(net::AuthChallengeInfo* auth_info,
+                                      net::URLRequest* request);
+
+#endif  // TOOLKIT_VIEWS
+
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_BROWSER_DIALOGS_H_