Refactor postMessage for out-of-process iframes.

content/browser/frame_host/render_frame_host_delegate.cc

Index: content/browser/frame_host/render_frame_host_delegate.cc
diff --git a/content/browser/frame_host/render_frame_host_delegate.cc b/content/browser/frame_host/render_frame_host_delegate.cc
index 4c81621d2b3f278932e63e968d17d4aedf16313a..ff4aba61ac6e42a42621665efeef70b51098d30d 100644
--- a/content/browser/frame_host/render_frame_host_delegate.cc
+++ b/content/browser/frame_host/render_frame_host_delegate.cc
@@ -7,6 +7,7 @@
 #include "base/callback.h"
 #include "base/strings/string16.h"
 #include "content/browser/frame_host/render_frame_host_delegate.h"
+#include "ipc/ipc_message.h"
 #include "ui/gfx/native_widget_types.h"
 #include "url/gurl.h"
 
@@ -69,6 +70,17 @@ RenderFrameHostDelegate::GetGeolocationServiceContext() {
   return NULL;
 }
 
+bool RenderFrameHostDelegate::ShouldRouteMessageEvent(
+    RenderFrameHost* target_rfh,
+    SiteInstance* source_site_instance) const {
+  return false;
+}
+
+int RenderFrameHostDelegate::EnsureOpenerRenderViewsExist(
+    RenderFrameHost* source_rfh) {
+  return MSG_ROUTING_NONE;
+}
+
 #if defined(OS_WIN)
 gfx::NativeViewAccessible
     RenderFrameHostDelegate::GetParentNativeViewAccessible() {