[cast_channel] Make CastSocket not inherit from ApiResource

extensions/browser/api/cast_channel/cast_socket.h

Index: extensions/browser/api/cast_channel/cast_socket.h
diff --git a/extensions/browser/api/cast_channel/cast_socket.h b/extensions/browser/api/cast_channel/cast_socket.h
index cfff93f301621f94a7afb7b4ac455d72e5048abf..292f4b3d92b1199ed7d15b719088eb4e312cceaa 100644
--- a/extensions/browser/api/cast_channel/cast_socket.h
+++ b/extensions/browser/api/cast_channel/cast_socket.h
@@ -16,8 +16,6 @@
 #include "base/memory/ref_counted.h"
 #include "base/threading/thread_checker.h"
 #include "base/timer/timer.h"
-#include "extensions/browser/api/api_resource.h"
-#include "extensions/browser/api/api_resource_manager.h"
 #include "extensions/browser/api/cast_channel/cast_auth_util.h"
 #include "extensions/browser/api/cast_channel/cast_socket.h"
 #include "extensions/browser/api/cast_channel/cast_transport.h"
@@ -58,10 +56,10 @@ enum CastDeviceCapability {
 };
 
 // Public interface of the CastSocket class.
-class CastSocket : public ApiResource {
+class CastSocket {
  public:
-  explicit CastSocket(const std::string& owner_extension_id);
-  ~CastSocket() override {}
+  explicit CastSocket();
+  virtual ~CastSocket() {}
 
   // Used by BrowserContextKeyedAPIFactory.
   static const char* service_name() { return "CastSocketImplManager"; }
@@ -88,10 +86,10 @@ class CastSocket : public ApiResource {
   // The IP endpoint for the destination of the channel.
   virtual const net::IPEndPoint& ip_endpoint() const = 0;
 
-  // Channel id generated by the ApiResourceManager.
+  // Channel id generated by the CastChannelService.
   virtual int id() const = 0;
 
-  // Sets the channel id generated by ApiResourceManager.
+  // Sets the channel id generated by CastChannelService.
   virtual void set_id(int id) = 0;
 
   // The authentication level requested for the channel.
@@ -111,6 +109,8 @@ class CastSocket : public ApiResource {
   // certificate during channel authentication.
   virtual bool audio_only() const = 0;
 
+  virtual const std::string& owner_extension_id() const = 0;
+
   // Marks a socket as invalid due to an error, and sends an OnError
   // event to |delegate_|.
   // The OnError event receipient is responsible for closing the socket in the
@@ -121,12 +121,6 @@ class CastSocket : public ApiResource {
   // Returns a pointer to the socket's message transport layer. Can be used to
   // send and receive CastMessages over the socket.
   virtual CastTransport* transport() const = 0;
-
-  // Tells the ApiResourceManager to retain CastSocket objects even
-  // if their corresponding extension is suspended.
-  // (CastSockets are still deleted if the extension is removed entirely from
-  // the browser.)
-  bool IsPersistent() const override;
 };
 
 // This class implements a channel between Chrome and a Cast device using a TCP
@@ -185,6 +179,7 @@ class CastSocketImpl : public CastSocket {
   ChannelError error_state() const override;
   bool keep_alive() const override;
   bool audio_only() const override;
+  const std::string& owner_extension_id() const override;
 
   // Required by ApiResourceManager.
   static const char* service_name() { return "CastSocketManager"; }
@@ -229,7 +224,6 @@ class CastSocketImpl : public CastSocket {
   FRIEND_TEST_ALL_PREFIXES(CastSocketTest,
                            TestConnectChallengeVerificationFails);
   friend class AuthTransportDelegate;
-  friend class ApiResourceManager<CastSocketImpl>;
   friend class CastSocketTest;
   friend class TestCastSocket;