PPAPI: Introduce PPB_NetworkProxy_Dev

ppapi/shared_impl/resource.h

 // 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.
 
 #ifndef PPAPI_SHARED_IMPL_RESOURCE_H_
 #define PPAPI_SHARED_IMPL_RESOURCE_H_
 
 #include <stddef.h>  // For NULL.
 
 #include <string>
@@ skipping 38 matching lines @@
   F(PPB_Graphics3D_API) \
   F(PPB_HostResolver_API) \
   F(PPB_HostResolver_Private_API) \
   F(PPB_ImageData_API) \
   F(PPB_InputEvent_API) \
   F(PPB_LayerCompositor_API) \
   F(PPB_MessageLoop_API) \
   F(PPB_NetAddress_API) \
   F(PPB_NetworkList_API) \
   F(PPB_NetworkMonitor_Private_API) \
+  F(PPB_NetworkProxy_API) \
   F(PPB_PDF_API) \
   F(PPB_Printing_API) \
   F(PPB_ResourceArray_API) \
   F(PPB_Scrollbar_API) \
   F(PPB_Talk_Private_API) \
   F(PPB_TrueTypeFont_API) \
   F(PPB_TrueTypeFont_Singleton_API) \
   F(PPB_TCPServerSocket_Private_API) \
   F(PPB_TCPSocket_API) \
   F(PPB_TCPSocket_Private_API) \
@@ skipping 118 matching lines @@
   virtual void NotifyInstanceWasDeleted();
 
   // Dynamic casting for this object. Returns the pointer to the given type if
   // it's supported. Derived classes override the functions they support to
   // return the interface.
   #define DEFINE_TYPE_GETTER(RESOURCE) \
     virtual thunk::RESOURCE* As##RESOURCE();
   FOR_ALL_PPAPI_RESOURCE_APIS(DEFINE_TYPE_GETTER)
   #undef DEFINE_TYPE_GETTER
 
-  // Template-based dynamic casting. See specializations below.
-  template <typename T> T* GetAs() { return NULL; }
+  // Template-based dynamic casting. See specializations below. This is
+  // unimplemented for the default case. This way, for anything that's not a
+  // resource (or if a developer forgets to add the resource to the list in
+  // this file), the result is a linker error.
+  template <typename T> T* GetAs();
 
   // Called when a PpapiPluginMsg_ResourceReply reply is received for a
   // previous CallRenderer. The message is the nested reply message, which may
   // be an empty message (depending on what the host sends).
   //
   // The default implementation will assert (if you send a request, you should
   // override this function).
   //
   // (This function would make more conceptual sense on PluginResource but we
   // need to call this function from general code that doesn't know how to
@@ skipping 30 matching lines @@
 #define DEFINE_RESOURCE_CAST(RESOURCE) \
   template<> inline thunk::RESOURCE* Resource::GetAs() { \
     return As##RESOURCE(); \
   }
 FOR_ALL_PPAPI_RESOURCE_APIS(DEFINE_RESOURCE_CAST)
 #undef DEFINE_RESOURCE_CAST
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_RESOURCE_H_