Add a content API to connect a Native Client module to an out-of-process PPAPI proxy.

content/public/renderer/renderer_ppapi_host.h

Index: content/public/renderer/renderer_ppapi_host.h
===================================================================
--- content/public/renderer/renderer_ppapi_host.h	(revision 162107)
+++ content/public/renderer/renderer_ppapi_host.h	(working copy)
@@ -5,9 +5,17 @@
 #ifndef CONTENT_PUBLIC_RENDERER_RENDERER_PPAPI_HOST_H_
 #define CONTENT_PUBLIC_RENDERER_RENDERER_PPAPI_HOST_H_
 
+#include "base/memory/ref_counted.h"
 #include "ppapi/c/pp_instance.h"
 
+class FilePath;
+
+namespace IPC {
+struct ChannelHandle;
+}
+
 namespace ppapi {
+class PpapiPermissions;
 namespace host {
 class PpapiHost;
 }
@@ -17,6 +25,13 @@
 class WebPluginContainer;
 }
 
+namespace webkit {
+namespace ppapi {
+class PluginInstance;
+class PluginModule;
+}
+}
+
 namespace content {
 
 class RenderView;
@@ -50,6 +65,17 @@
   // if there is no current user gesture.
   virtual bool HasUserGesture(PP_Instance instance) const = 0;
 
+  // Creates a host and sets up an out-of-process proxy for an external plugin
+  // module. Returns the host if the external module is proxied successfully,
+  // otherwise NULL.

[brettw, 2012/10/16 23:37:32]

Can the comment here make it clear what the file path is used for? It's weird
because you don't actually pass a valid file path.

[bbudge, 2012/10/17 00:18:44]

Done. This is only used to construct a PepperHungPluginFilter internally. I left
it a FilePath to make it a little easier. It looks like it's only used to report
hangs with some kind of identifier for the plugin. I'll hook this up later.

+  static RendererPpapiHost* CreateExternalPluginModule(

[jam, 2012/10/16 21:14:43]

nit: static methods go first in the api

[bbudge, 2012/10/17 00:18:44]

Done.

+      scoped_refptr<webkit::ppapi::PluginModule> plugin_module,
+      webkit::ppapi::PluginInstance* plugin_instance,
+      const FilePath& file_path,
+      ppapi::PpapiPermissions permissions,
+      const IPC::ChannelHandle& channel_handle,
+      int child_process_id);
+
  protected:
   virtual ~RendererPpapiHost() {}
 };