Remove RenderFrameMessageFilter.

content/browser/renderer_host/render_message_filter.h

Index: content/browser/renderer_host/render_message_filter.h
diff --git a/content/browser/renderer_host/render_message_filter.h b/content/browser/renderer_host/render_message_filter.h
index cafd21064f33c05d76a57c1c0643724c08a71238..738e45acca95919bb0601874621f62871938d4f4 100644
--- a/content/browser/renderer_host/render_message_filter.h
+++ b/content/browser/renderer_host/render_message_filter.h
@@ -29,6 +29,8 @@
 #include "media/base/channel_layout.h"
 #include "net/cookies/canonical_cookie.h"
 #include "third_party/WebKit/public/web/WebPopupType.h"
+#include "third_party/WebKit/public/web/WebSandboxFlags.h"
+#include "third_party/WebKit/public/web/WebTreeScopeType.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/native_widget_types.h"
@@ -144,6 +146,11 @@ class CONTENT_EXPORT RenderMessageFilter : public BrowserMessageFilter {
                       int* main_frame_route_id,
                       int* surface_id,
                       int64* cloned_session_storage_namespace_id);
+  void OnCreateChildFrame(int parent_routing_id,
+                          blink::WebTreeScopeType scope,
+                          const std::string& frame_name,
+                          blink::WebSandboxFlags sandbox_flags,
+                          int* new_render_frame_id);
   void OnCreateWidget(int opener_id,
                       blink::WebPopupType popup_type,
                       int* route_id,