Aura: Show dialog box asking user's permisssion for screen sharing for gtalk

ppapi/proxy/ppb_talk_private_proxy.cc

Index: ppapi/proxy/ppb_talk_private_proxy.cc
diff --git a/ppapi/proxy/ppb_talk_private_proxy.cc b/ppapi/proxy/ppb_talk_private_proxy.cc
index 52c2f3a6eda45521dd113aa5f7b0bb5f718b8d89..ee2e73011e0e63ea8a8d2e3fc8918af9a4f18c4f 100644
--- a/ppapi/proxy/ppb_talk_private_proxy.cc
+++ b/ppapi/proxy/ppb_talk_private_proxy.cc
@@ -22,7 +22,9 @@ namespace {
 
 class Talk : public Resource, public thunk::PPB_Talk_Private_API {
  public:
-  Talk(PP_Instance instance) : Resource(OBJECT_IS_PROXY, instance) {
+  Talk(PP_Instance instance, int renderer_id)
+      : Resource(OBJECT_IS_PROXY, instance),
+        renderer_id_(renderer_id) {
   }
 
   // Resource overrides.
@@ -39,12 +41,20 @@ class Talk : public Resource, public thunk::PPB_Talk_Private_API {
 
     callback_ = new TrackedCallback(this, callback);
 
-    PluginGlobals::Get()->plugin_proxy_delegate()->SendToBrowser(
+    if (PluginGlobals::Get()->plugin_proxy_delegate()->SendToBrowser(
         new PpapiHostMsg_PPBTalk_GetPermission(
             API_ID_PPB_TALK,
             dispatcher->plugin_dispatcher_id(),
-            pp_resource()));
-    return PP_OK_COMPLETIONPENDING;
+            pp_resource(),
+            renderer_id_)))
+      return PP_OK_COMPLETIONPENDING;
+    return PP_ERROR_FAILED;
+  }
+
+  int GetRendererId() {
+    // Plugin side does not implement this method.
+    NOTREACHED();
+    return 0;
   }
 
   void GotCompletion(int32_t result) {
@@ -53,6 +63,7 @@ class Talk : public Resource, public thunk::PPB_Talk_Private_API {
 
  private:
   scoped_refptr<TrackedCallback> callback_;
+  int renderer_id_;
 
   DISALLOW_COPY_AND_ASSIGN(Talk);
 };
@@ -65,7 +76,14 @@ PPB_Talk_Private_Proxy::PPB_Talk_Private_Proxy(Dispatcher* dispatcher)
 
 // static
 PP_Resource PPB_Talk_Private_Proxy::CreateProxyResource(PP_Instance instance) {
-  return (new Talk(instance))->GetReference();
+  PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
+  if (!dispatcher)
+    return 0;
+
+  int renderer_id;
+  dispatcher->Send(new PpapiHostMsg_PPBTalk_GetRendererId(API_ID_PPB_TALK,
+      instance, &renderer_id));
+  return (new Talk(instance, renderer_id))->GetReference();
 }
 
 bool PPB_Talk_Private_Proxy::OnMessageReceived(const IPC::Message& msg) {
@@ -73,6 +91,7 @@ bool PPB_Talk_Private_Proxy::OnMessageReceived(const IPC::Message& msg) {
   IPC_BEGIN_MESSAGE_MAP(PPB_Talk_Private_Proxy, msg)
     IPC_MESSAGE_HANDLER(PpapiMsg_PPBTalk_GetPermissionACK,
                         OnMsgGetPermissionACK)
+    IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBTalk_GetRendererId, OnMsgGetRendererId)
     IPC_MESSAGE_UNHANDLED(handled = false);
   IPC_END_MESSAGE_MAP();
   return handled;
@@ -87,5 +106,17 @@ void PPB_Talk_Private_Proxy::OnMsgGetPermissionACK(uint32 /* dispatcher_id */,
     static_cast<Talk*>(enter.object())->GotCompletion(result);
 }
 
+void PPB_Talk_Private_Proxy::OnMsgGetRendererId(PP_Instance instance,
+                                                int* renderer_id) {
+  thunk::EnterResourceCreation enter(instance);
+  if (enter.succeeded()) {
+    PP_Resource resource = enter.functions()->CreateTalk(instance);
+    thunk::EnterResourceNoLock<thunk::PPB_Talk_Private_API> enter1(
+        resource, false);
+    if (enter1.succeeded())
+      *renderer_id = enter1.object()->GetRendererId();
+  }
+}
+
 }  // namespace proxy
 }  // namespace ppapi