Make NavigationParams clearer

content/browser/frame_host/render_frame_host_impl.h

Index: content/browser/frame_host/render_frame_host_impl.h
diff --git a/content/browser/frame_host/render_frame_host_impl.h b/content/browser/frame_host/render_frame_host_impl.h
index fa4756f9295e39f18092e40708ef6a3f7af7a65a..aeefa1345ac4b8d0fa7ac7e9528c45dcf3fb5fec 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -327,8 +327,7 @@ class CONTENT_EXPORT RenderFrameHostImpl
   // rather than sending it.
   void Navigate(const CommonNavigationParams& common_params,
                 const StartNavigationParams& start_params,
-                const CommitNavigationParams& commit_params,
-                const HistoryNavigationParams& history_params);
+                const RequestNavigationParams& request_params);
 
   // Load the specified URL; this is a shortcut for Navigate().
   void NavigateToURL(const GURL& url);
@@ -441,8 +440,7 @@ class CONTENT_EXPORT RenderFrameHostImpl
   void CommitNavigation(ResourceResponse* response,
                         scoped_ptr<StreamHandle> body,
                         const CommonNavigationParams& common_params,
-                        const CommitNavigationParams& commit_params,
-                        const HistoryNavigationParams& history_params);
+                        const RequestNavigationParams& request_params);
 
   // Sets up the Mojo connection between this instance and its associated render
   // frame if it has not yet been set up.