Change window opening behavior for HtmlDialogTabContentsDelegate.

chrome/browser/browser_navigator.h

Index: chrome/browser/browser_navigator.h
diff --git a/chrome/browser/browser_navigator.h b/chrome/browser/browser_navigator.h
index c770d8aae2973b7eae1c568b008f409c2f40fbf0..9d099d89cfe780e7c489ad9b26c658c8a8eedbae 100644
--- a/chrome/browser/browser_navigator.h
+++ b/chrome/browser/browser_navigator.h
@@ -118,8 +118,8 @@ struct NavigateParams {
 
   // [in]  Specifies a Browser object where the navigation could occur or the
   //       tab could be added. Navigate() is not obliged to use this Browser if
-  //       it is not compatible with the operation being performed. Cannot be
-  //       NULL since Navigate() uses this Browser's Profile.
+  //       it is not compatible with the operation being performed. If NULL,
+  //       |profile| should be specified to find or create a matching Browser.
   // [out] Specifies the Browser object where the navigation occurred or the
   //       tab was added. Guaranteed non-NULL unless the disposition did not
   //       require a navigation, in which case this is set to NULL
@@ -130,6 +130,10 @@ struct NavigateParams {
   //       objects are deleted when the user closes a visible browser window).
   Browser* browser;
 
+  // If |browser| == NULL, specifies a Profile to use when finding or
+  // creating a Browser.
+  Profile* profile;
+
  private:
   NavigateParams();
 };
@@ -140,4 +144,3 @@ void Navigate(NavigateParams* params);
 }  // namespace browser
 
 #endif  // CHROME_BROWSER_BROWSER_NAVIGATOR_H_
-