Add Java wrapper for RenderFrameHost

content/public/browser/render_frame_host.h

Index: content/public/browser/render_frame_host.h
diff --git a/content/public/browser/render_frame_host.h b/content/public/browser/render_frame_host.h
index d78ba06e1c48ee5f83b9daa3e470db4e9cc443f1..c67dbef7c1975450a9e461c704fc313754d4fd5b 100644
--- a/content/public/browser/render_frame_host.h
+++ b/content/public/browser/render_frame_host.h
@@ -8,6 +8,7 @@
 #include <string>
 
 #include "base/callback_forward.h"
+#include "base/supports_user_data.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "content/public/common/console_message_level.h"
@@ -46,7 +47,8 @@ using FormFieldDataCallback = base::Callback<void(const FormFieldData&)>;
 
 // The interface provides a communication conduit with a frame in the renderer.
 class CONTENT_EXPORT RenderFrameHost : public IPC::Listener,
-                                       public IPC::Sender {
+                                       public IPC::Sender,
+                                       public base::SupportsUserData {

[boliu, 2017/02/15 02:12:51]

can this be on the impl class?

[rwlbuis, 2017/02/15 22:08:49]

Done.

  public:
   // Returns the RenderFrameHost given its ID and the ID of its render process.
   // Returns nullptr if the IDs do not correspond to a live RenderFrameHost.