Add a blocking version of the sync promo dialog

chrome/browser/ui/webui/html_dialog_tab_contents_delegate.h

Index: chrome/browser/ui/webui/html_dialog_tab_contents_delegate.h
diff --git a/chrome/browser/ui/webui/html_dialog_tab_contents_delegate.h b/chrome/browser/ui/webui/html_dialog_tab_contents_delegate.h
index 198d90a37b834ceb82956d514a5dcfddacb4db39..e678841fc09dc0d2aad9d31dd4f6dd6b4c7ac0e0 100644
--- a/chrome/browser/ui/webui/html_dialog_tab_contents_delegate.h
+++ b/chrome/browser/ui/webui/html_dialog_tab_contents_delegate.h
@@ -9,6 +9,7 @@
 #include "base/compiler_specific.h"
 #include "content/public/browser/web_contents_delegate.h"
 
+class Browser;
 class Profile;
 
 // This class implements (and mostly ignores) most of
@@ -18,6 +19,22 @@ class Profile;
 // behave consistently.
 class HtmlDialogTabContentsDelegate : public content::WebContentsDelegate {
  public:
+  // Opens the URL. On return |out_new_contents| contains the WebContents the
+  // URL is opened in. Returns the browser spawned by the operatoin.
+  static Browser* StaticOpenURLFromTab(Profile* profile,
+                                       content::WebContents* source,
+                                       const content::OpenURLParams& params,
+                                       content::WebContents** out_new_contents);
+
+  // Creates a new tab with |new_contents|. Returns the browser spawned by the
+  // operation.
+  static Browser* StaticAddNewContents(Profile* profile,
+                                       content::WebContents* source,
+                                       content::WebContents* new_contents,
+                                       WindowOpenDisposition disposition,
+                                       const gfx::Rect& initial_pos,
+                                       bool user_gesture);
+
   // Profile must be non-NULL.
   explicit HtmlDialogTabContentsDelegate(Profile* profile);