Pepper API implementation for output protection.

chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.cc

 // 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.
 
 #include "chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h"
 
 #include "chrome/browser/renderer_host/pepper/pepper_broker_message_filter.h"
 #include "chrome/browser/renderer_host/pepper/pepper_crx_file_system_message_filter.h"
 #include "chrome/browser/renderer_host/pepper/pepper_extensions_common_message_filter.h"
 #include "chrome/browser/renderer_host/pepper/pepper_flash_browser_host.h"
 #include "chrome/browser/renderer_host/pepper/pepper_flash_clipboard_message_filter.h"
 #include "chrome/browser/renderer_host/pepper/pepper_flash_drm_host.h"
+#include "chrome/browser/renderer_host/pepper/pepper_output_protection_host.h"
 #include "chrome/browser/renderer_host/pepper/pepper_talk_host.h"
 #include "content/public/browser/browser_ppapi_host.h"
 #include "ppapi/host/message_filter_host.h"
 #include "ppapi/host/ppapi_host.h"
 #include "ppapi/host/resource_host.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/ppapi_permissions.h"
 
 using ppapi::host::MessageFilterHost;
 using ppapi::host::ResourceHost;
@@ skipping 43 matching lines @@
       case PpapiHostMsg_Broker_Create::ID: {
         scoped_refptr<ResourceMessageFilter> broker_filter(
             new PepperBrokerMessageFilter(instance, host_));
         return scoped_ptr<ResourceHost>(new MessageFilterHost(
             host_->GetPpapiHost(), instance, params.pp_resource(),
             broker_filter));
       }
       case PpapiHostMsg_Talk_Create::ID:
         return scoped_ptr<ResourceHost>(new PepperTalkHost(
             host_, instance, params.pp_resource()));
+#if defined(OS_CHROMEOS)
+      case PpapiHostMsg_OutputProtection_Create::ID: {
+        return scoped_ptr<ResourceHost>(new PepperOutputProtectionHost(

[DaleCurtis, 2013/09/12 01:23:13]

While reviewing your code, I'm beginning to think that given the work both of
our APIs are doing on the UI thread, maybe we should be using a
MessageFilterHost w/ the UI thread instead of ResourceHost with hopping.

MessageFilterHost allows us to set OverrideTaskRunnerForMessage() to the UI
thread.  Which would mean we can get rid of the paired BlahBlah and
BlahBlahOnUIThread methods.  See PepperBrokerMessageFilter for an example of
this.

dmichael, WDYT?

[dmichael (off chromium), 2013/09/12 16:49:10]

Good point, if you don't have to do work on the IO thread before posting to the
UI thread, that's probably  a better approach.

[kcwu, 2013/09/12 18:22:08]

Done.
However, I still need to post task in dtor since the dtor is not
invoked in UI thread.

+            host_, instance, params.pp_resource()));
+      }
+#endif
     }
   }
 
   // Flash interfaces.
   if (host_->GetPpapiHost()->permissions().HasPermission(
           ppapi::PERMISSION_FLASH)) {
     switch (message.type()) {
       case PpapiHostMsg_Flash_Create::ID:
         return scoped_ptr<ResourceHost>(new PepperFlashBrowserHost(
             host_, instance, params.pp_resource()));
@@ skipping 22 matching lines @@
     if (!crxfs_filter)
       return scoped_ptr<ResourceHost>();
     return scoped_ptr<ResourceHost>(new MessageFilterHost(
         host, instance, params.pp_resource(), crxfs_filter));
   }
 
   return scoped_ptr<ResourceHost>();
 }
 
 }  // namespace chrome