OOPIF: Add frame_unique_name to FrameNavigationEntry.

content/public/common/frame_navigate_params.h

Index: content/public/common/frame_navigate_params.h
diff --git a/content/public/common/frame_navigate_params.h b/content/public/common/frame_navigate_params.h
index e3b93342eda2c3e2eac1fe4a8023e418a037e9bc..9e006c08a05ab4aba9c7851cfbc69e5a4f86c7f8 100644
--- a/content/public/common/frame_navigate_params.h
+++ b/content/public/common/frame_navigate_params.h
@@ -33,6 +33,9 @@ struct CONTENT_EXPORT FrameNavigateParams {
   // means. If the navigation was renderer-initiated, this value is 0.
   int nav_entry_id;
 
+  // The unique name of the frame in which this navigation takes place.
+  std::string frame_unique_name;
+
   // The item sequence number identifies each stop in the session history.  It
   // is unique within the renderer process and makes a best effort to be unique
   // across browser sessions (using a renderer process timestamp).