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

content/public/renderer/renderer_ppapi_host.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #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;
 }
 }
 
 namespace WebKit {
 class WebPluginContainer;
 }
 
+namespace webkit {
+namespace ppapi {
+class PluginInstance;
+class PluginModule;
+}
+}
+
 namespace content {
 
 class RenderView;
 
 // Interface that allows components in the embedder app to talk to the
 // PpapiHost in the renderer process.
 //
 // There will be one of these objects in the renderer per plugin module.
 class RendererPpapiHost {
  public:
@@ skipping 13 matching lines @@
   virtual WebKit::WebPluginContainer* GetContainerForInstance(
       PP_Instance instance) const = 0;
 
   // Returns true if the given instance is considered to be currently
   // processing a user gesture or the plugin module has the "override user
   // gesture" flag set (in which case it can always do things normally
   // restricted by user gestures). Returns false if the instance is invalid or
   // 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() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_RENDERER_PPAPI_HOST_H_