Merge ResourceRequestBodyImpl and ResourceRequestBody.

content/browser/frame_host/navigator_impl.cc

Index: content/browser/frame_host/navigator_impl.cc
diff --git a/content/browser/frame_host/navigator_impl.cc b/content/browser/frame_host/navigator_impl.cc
index 9f9285ee7d50b67f531f9eddaa83f938361d81ce..e7f78f43ce73ae7067274037286ddb679ece369d 100644
--- a/content/browser/frame_host/navigator_impl.cc
+++ b/content/browser/frame_host/navigator_impl.cc
@@ -307,7 +307,7 @@ bool NavigatorImpl::NavigateToEntry(
     bool is_same_document_history_load,
     bool is_history_navigation_in_new_child,
     bool is_pending_entry,
-    const scoped_refptr<ResourceRequestBodyImpl>& post_body) {
+    const scoped_refptr<ResourceRequestBody>& post_body) {
   TRACE_EVENT0("browser,navigation", "NavigatorImpl::NavigateToEntry");
 
   GURL dest_url = frame_entry.url();
@@ -719,7 +719,7 @@ void NavigatorImpl::RequestOpenURL(
     RenderFrameHostImpl* render_frame_host,
     const GURL& url,
     bool uses_post,
-    const scoped_refptr<ResourceRequestBodyImpl>& body,
+    const scoped_refptr<ResourceRequestBody>& body,
     const std::string& extra_headers,
     const Referrer& referrer,
     WindowOpenDisposition disposition,
@@ -816,7 +816,7 @@ void NavigatorImpl::RequestTransferURL(
     const GlobalRequestID& transferred_global_request_id,
     bool should_replace_current_entry,
     const std::string& method,
-    scoped_refptr<ResourceRequestBodyImpl> post_body,
+    scoped_refptr<ResourceRequestBody> post_body,
     const std::string& extra_headers) {
   // |method != "POST"| should imply absence of |post_body|.
   if (method != "POST" && post_body) {
@@ -1138,7 +1138,7 @@ void NavigatorImpl::RequestNavigation(
     PreviewsState previews_state,
     bool is_same_document_history_load,
     bool is_history_navigation_in_new_child,
-    const scoped_refptr<ResourceRequestBodyImpl>& post_body,
+    const scoped_refptr<ResourceRequestBody>& post_body,
     base::TimeTicks navigation_start) {
   CHECK(IsBrowserSideNavigationEnabled());
   DCHECK(frame_tree_node);