Add support for external out-of-process PPAPI plugins in the browser.

content/public/browser/browser_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_BROWSER_BROWSER_PPAPI_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_PPAPI_HOST_H_
 
 #include "base/callback_forward.h"
 #include "base/process.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_view_host.h"
 #include "ppapi/c/pp_instance.h"
 
+namespace IPC {
+class ChannelProxy;
+struct ChannelHandle;
+class Sender;
+}
+
+namespace net {
+class HostResolver;
+}
+
 namespace ppapi {
+class PpapiPermissions;
 namespace host {
 class PpapiHost;
 }
 }
 
 namespace content {
 
 // Interface that allows components in the embedder app to talk to the
 // PpapiHost in the browser process.
 //
 // There will be one of these objects in the browser per plugin process. It
 // lives entirely on the I/O thread.
 class CONTENT_EXPORT BrowserPpapiHost {
  public:
+  // Creates a browser host and sets up an out-of-process proxy for an external
+  // pepper plugin process.
+  CONTENT_EXPORT static BrowserPpapiHost* CreateExternalPluginProcess(
+      IPC::Sender* sender,
+      ppapi::PpapiPermissions permissions,
+      base::ProcessHandle plugin_child_process,
+      IPC::ChannelProxy* channel,
+      net::HostResolver* host_resolver,
+      int render_process_id,
+      int render_view_id);
+
+  virtual ~BrowserPpapiHost() {}
+
   // Returns the PpapiHost object.
   virtual ppapi::host::PpapiHost* GetPpapiHost() = 0;
 
   // Returns the handle to the plugin process.
   virtual base::ProcessHandle GetPluginProcessHandle() const = 0;
 
   // Returns true if the given PP_Instance is valid.
   virtual bool IsValidInstance(PP_Instance instance) const = 0;
 
   // Retrieves the process/view Ids associated with the RenderView containing
   // the given instance and returns true on success. If the instance is
   // invalid, the ids will be 0 and false will be returned.
   //
   // When a resource is created, the PP_Instance should already have been
   // validated, and the resource hosts will be deleted when the resource is
   // destroyed. So it should not generally be necessary to check for errors
   // from this function except as a last-minute sanity check if you convert the
   // IDs to a RenderView/ProcessHost on the UI thread.
   virtual bool GetRenderViewIDsForInstance(PP_Instance instance,
                                            int* render_process_id,
                                            int* render_view_id) const = 0;
-
- protected:
-  virtual ~BrowserPpapiHost() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_PPAPI_HOST_H_