Add a way to implement GetInterface in the broker.

ppapi/cpp/ppp_entrypoints.cc

Index: ppapi/cpp/ppp_entrypoints.cc
diff --git a/ppapi/cpp/ppp_entrypoints.cc b/ppapi/cpp/ppp_entrypoints.cc
index c3e7568c6b3052e73ad036b6d1dbc19c488aca63..1da045ab106d0322cf0d39e94781ee9bf6ae867d 100644
--- a/ppapi/cpp/ppp_entrypoints.cc
+++ b/ppapi/cpp/ppp_entrypoints.cc
@@ -14,6 +14,7 @@
 #include "ppapi/cpp/module_embedder.h"
 
 static pp::Module* g_module_singleton = NULL;
+static PP_GetInterface_Func g_broker_get_interface = NULL;
 
 namespace pp {
 
@@ -22,6 +23,10 @@ pp::Module* Module::Get() {
   return g_module_singleton;
 }
 
+void SetBrokerGetIntefaceFunc(PP_GetInterface_Func broker_get_interface) {
+  g_broker_get_interface = broker_get_interface;
+}
+
 }  // namespace pp
 
 // Global PPP functions --------------------------------------------------------
@@ -46,7 +51,11 @@ PP_EXPORT void PPP_ShutdownModule() {
 }
 
 PP_EXPORT const void* PPP_GetInterface(const char* interface_name) {
-  if (!g_module_singleton)
+  if (!g_module_singleton) {

[viettrungluu, 2012/04/12 22:14:07]

Nit: Maybe it'd be nicer to write this function as:

if (g_module_singleton)
  return ...;
if (g_broker_get_interface)
  return ...;
return NULL;

+    // If there's no module, we might be a broker.
+    if (g_broker_get_interface)
+      return g_broker_get_interface(interface_name);
     return NULL;
+  }
   return g_module_singleton->GetPluginInterface(interface_name);
 }