Add NaCl proxies for Pepper Video Source and Destination resources.

content/renderer/pepper/content_renderer_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 "content/renderer/pepper/content_renderer_pepper_host_factory.h"
 
 #include "base/logging.h"
 #include "base/strings/string_util.h"
+#include "content/public/common/content_client.h"
+#include "content/public/renderer/content_renderer_client.h"
 #include "content/renderer/pepper/pepper_audio_input_host.h"
 #include "content/renderer/pepper/pepper_file_chooser_host.h"
 #include "content/renderer/pepper/pepper_file_io_host.h"
 #include "content/renderer/pepper/pepper_file_system_host.h"
 #include "content/renderer/pepper/pepper_graphics_2d_host.h"
 #include "content/renderer/pepper/pepper_truetype_font_host.h"
 #include "content/renderer/pepper/pepper_url_loader_host.h"
 #include "content/renderer/pepper/pepper_video_capture_host.h"
 #include "content/renderer/pepper/pepper_video_destination_host.h"
 #include "content/renderer/pepper/pepper_video_source_host.h"
 #include "content/renderer/pepper/pepper_websocket_host.h"
 #include "content/renderer/pepper/renderer_ppapi_host_impl.h"
 #include "ppapi/host/resource_host.h"
 #include "ppapi/proxy/ppapi_message_utils.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/serialized_structs.h"
+#include "third_party/WebKit/public/platform/WebURL.h"
+#include "third_party/WebKit/public/web/WebDocument.h"
+#include "third_party/WebKit/public/web/WebElement.h"
+#include "third_party/WebKit/public/web/WebPluginContainer.h"
 
 using ppapi::host::ResourceHost;
 using ppapi::proxy::SerializedTrueTypeFontDesc;
 using ppapi::UnpackMessage;
 
+namespace {
+
+bool CanUseMediaStreamAPI(const content::RendererPpapiHost* host,
+                          PP_Instance instance) {
+  WebKit::WebPluginContainer* container =
+      host->GetContainerForInstance(instance);
+  if (!container)
+    return false;
+
+  GURL document_url = container->element().document().url();
+  content::ContentRendererClient* content_renderer_client =
+      content::GetContentClient()->renderer();
+  return content_renderer_client->AllowPepperMediaStreamAPI(document_url);
+}
+
+}
+
 namespace content {
 
 ContentRendererPepperHostFactory::ContentRendererPepperHostFactory(
     RendererPpapiHostImpl* host)
     : host_(host) {
 }
 
 ContentRendererPepperHostFactory::~ContentRendererPepperHostFactory() {
 }
 
@@ skipping 34 matching lines @@
       return scoped_ptr<ResourceHost>(
           PepperGraphics2DHost::Create(host_, instance, params.pp_resource(),
                                        size, is_always_opaque));
     }
     case PpapiHostMsg_URLLoader_Create::ID:
       return scoped_ptr<ResourceHost>(new PepperURLLoaderHost(
           host_, false, instance, params.pp_resource()));
     case PpapiHostMsg_WebSocket_Create::ID:
       return scoped_ptr<ResourceHost>(new PepperWebSocketHost(
           host_, instance, params.pp_resource()));
+#if defined(ENABLE_WEBRTC)
+    // These private MediaStream interfaces are exposed as if they were public
+    // so they can be used by NaCl plugins. However, they are available only
+    // for whitelisted apps.
+    case PpapiHostMsg_VideoDestination_Create::ID:
+      if (CanUseMediaStreamAPI(host_, instance))
+        return scoped_ptr<ResourceHost>(new PepperVideoDestinationHost(
+            host_, instance, params.pp_resource()));
+    case PpapiHostMsg_VideoSource_Create::ID:
+      if (CanUseMediaStreamAPI(host_, instance))
+        return scoped_ptr<ResourceHost>(new PepperVideoSourceHost(
+            host_, instance, params.pp_resource()));
+#endif  // defined(ENABLE_WEBRTC)
   }
 
   // Dev interfaces.
   if (GetPermissions().HasPermission(ppapi::PERMISSION_DEV)) {
     switch (message.type()) {
       case PpapiHostMsg_AudioInput_Create::ID:
         return scoped_ptr<ResourceHost>(new PepperAudioInputHost(
             host_, instance, params.pp_resource()));
       case PpapiHostMsg_FileChooser_Create::ID:
         return scoped_ptr<ResourceHost>(new PepperFileChooserHost(
@@ skipping 18 matching lines @@
             host_, instance, params.pp_resource());
         if (!host->Init()) {
           delete host;
           return scoped_ptr<ResourceHost>();
         }
         return scoped_ptr<ResourceHost>(host);
       }
     }
   }
 
-#if defined(ENABLE_WEBRTC)
-  // Private interfaces.
-  if (GetPermissions().HasPermission(ppapi::PERMISSION_PRIVATE)) {
-    switch (message.type()) {
-      case PpapiHostMsg_VideoDestination_Create::ID:
-        return scoped_ptr<ResourceHost>(new PepperVideoDestinationHost(
-            host_, instance, params.pp_resource()));
-      case PpapiHostMsg_VideoSource_Create::ID:
-        return scoped_ptr<ResourceHost>(new PepperVideoSourceHost(
-            host_, instance, params.pp_resource()));
-    }
-  }
-#endif
-
   return scoped_ptr<ResourceHost>();
 }
 
 const ppapi::PpapiPermissions&
 ContentRendererPepperHostFactory::GetPermissions() const {
   return host_->GetPpapiHost()->permissions();
 }
 
 }  // namespace content