Add Views implementation of ProfileSigninConfirmationDialog.

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 a28ba5a74032ca61a383a896f14d8169c7dc2c79..4f5422d9213829e06ea6b87f5257f23dc28d8cfe 100644
--- a/chrome/browser/ui/browser_dialogs.h
+++ b/chrome/browser/ui/browser_dialogs.h
@@ -5,11 +5,13 @@
 #ifndef CHROME_BROWSER_UI_BROWSER_DIALOGS_H_
 #define CHROME_BROWSER_UI_BROWSER_DIALOGS_H_
 
+#include "base/callback.h"
 #include "ipc/ipc_message.h"  // For IPC_MESSAGE_LOG_ENABLED.
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/native_widget_types.h"
 
 class Browser;
+class Profile;
 class SkBitmap;
 class TabModalConfirmDialogDelegate;
 
@@ -79,6 +81,15 @@ void ShowCreateWebAppShortcutsDialog(gfx::NativeWindow parent_window,
 content::ColorChooser* ShowColorChooser(content::WebContents* web_contents,
                                         SkColor initial_color);
 
+void ShowProfileSigninConfirmationDialog(
+    Browser* browser,
+    content::WebContents* web_contents,
+    Profile* profile,
+    const std::string& username,
+    const base::Closure& cancel_signin,
+    const base::Closure& signin_with_new_profile,
+    const base::Closure& continue_signin);
+
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_BROWSER_DIALOGS_H_