Cast Extensions API: Factory method for creating a cast session

chrome/renderer/extensions/webrtc_native_handler.h

Index: chrome/renderer/extensions/webrtc_native_handler.h
diff --git a/chrome/renderer/extensions/webrtc_native_handler.h b/chrome/renderer/extensions/webrtc_native_handler.h
index d2fcd9fe34b52feb592077cdf4d239ca58594f2f..3de8ccb9ed771b9282091c92b2d7a09fa7307f30 100644
--- a/chrome/renderer/extensions/webrtc_native_handler.h
+++ b/chrome/renderer/extensions/webrtc_native_handler.h
@@ -8,6 +8,7 @@
 #include <map>
 
 #include "base/memory/linked_ptr.h"
+#include "base/memory/weak_ptr.h"
 #include "chrome/renderer/extensions/object_backed_native_handler.h"
 #include "v8/include/v8.h"
 
@@ -25,8 +26,9 @@ class WebRtcNativeHandler : public ObjectBackedNativeHandler {
   virtual ~WebRtcNativeHandler();
 
  private:
-  void CreateCastSendTransport(
+  void CreateCastSession(
       const v8::FunctionCallbackInfo<v8::Value>& args);
+
   void DestroyCastSendTransport(
       const v8::FunctionCallbackInfo<v8::Value>& args);
   void CreateParamsCastSendTransport(
@@ -38,8 +40,6 @@ class WebRtcNativeHandler : public ObjectBackedNativeHandler {
   void StopCastSendTransport(
       const v8::FunctionCallbackInfo<v8::Value>& args);
 
-  void CreateCastUdpTransport(
-      const v8::FunctionCallbackInfo<v8::Value>& args);
   void DestroyCastUdpTransport(
       const v8::FunctionCallbackInfo<v8::Value>& args);
   void StartCastUdpTransport(
@@ -47,6 +47,13 @@ class WebRtcNativeHandler : public ObjectBackedNativeHandler {
   void StopCastUdpTransport(
       const v8::FunctionCallbackInfo<v8::Value>& args);
 
+  // Helper method to call the v8 callback function after a session is
+  // created.
+  void CallCreateCallback(v8::Handle<v8::Function> function,
+                          scoped_ptr<CastSendTransport> stream1,
+                          scoped_ptr<CastSendTransport> stream2,
+                          scoped_ptr<CastUdpTransport> udp_transport);
+
   // Gets the Send or UDP transport indexed by |transport_id|.
   // If not found, returns NULL and throws a V8 exception.
   CastSendTransport* GetSendTransportOrThrow(int transport_id) const;
@@ -60,6 +67,8 @@ class WebRtcNativeHandler : public ObjectBackedNativeHandler {
   typedef std::map<int, linked_ptr<CastUdpTransport> > UdpTransportMap;
   UdpTransportMap udp_transport_map_;
 
+  base::WeakPtrFactory<WebRtcNativeHandler> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(WebRtcNativeHandler);
 };