Pick frame to navigate in the browser process.

content/common/navigation_params.h

Index: content/common/navigation_params.h
diff --git a/content/common/navigation_params.h b/content/common/navigation_params.h
index ce34bcc04bdf1d7f7bab3adab382715c5587b28f..cba83c67b19b97132fbe2f161127a44121d68ee8 100644
--- a/content/common/navigation_params.h
+++ b/content/common/navigation_params.h
@@ -166,7 +166,6 @@ struct CONTENT_EXPORT RequestNavigationParams {
                           base::TimeTicks navigation_start,
                           const std::vector<GURL>& redirects,
                           bool can_load_local_resources,
-                          const std::string& frame_to_navigate,
                           base::Time request_time,
                           const PageState& page_state,
                           int32 page_id,
@@ -190,9 +189,6 @@ struct CONTENT_EXPORT RequestNavigationParams {
   // resources.
   bool can_load_local_resources;
 
-  // If not empty, which frame to navigate.
-  std::string frame_to_navigate;
-
   // The time the request was created. This is used by the old performance
   // infrastructure to set up DocumentState associated with the RenderView.
   // TODO(ppi): make it go away.