Fix a crash related to PPAPI scripting.

ppapi/proxy/host_var_serialization_rules.h

Index: ppapi/proxy/host_var_serialization_rules.h
diff --git a/ppapi/proxy/host_var_serialization_rules.h b/ppapi/proxy/host_var_serialization_rules.h
index 9f52aed7efcce96db2c0f453c29a6511b0fecd72..8de6cdecf347f138e95d6b589a7c3cbf9c62101a 100644
--- a/ppapi/proxy/host_var_serialization_rules.h
+++ b/ppapi/proxy/host_var_serialization_rules.h
@@ -8,7 +8,6 @@
 #include <string>
 
 #include "base/basictypes.h"
-#include "ppapi/c/pp_module.h"
 #include "ppapi/c/ppb_var.h"
 #include "ppapi/proxy/var_serialization_rules.h"
 
@@ -18,23 +17,19 @@ namespace proxy {
 // Implementation of the VarSerializationRules interface for the host side.
 class HostVarSerializationRules : public VarSerializationRules {
  public:
-  HostVarSerializationRules(PP_Module pp_module);
+  HostVarSerializationRules();
   ~HostVarSerializationRules();
 
   // VarSerialization implementation.
   virtual PP_Var SendCallerOwned(const PP_Var& var);
-  virtual PP_Var BeginReceiveCallerOwned(const PP_Var& var,
-                                         Dispatcher* dispatcher);
+  virtual PP_Var BeginReceiveCallerOwned(const PP_Var& var);
   virtual void EndReceiveCallerOwned(const PP_Var& var);
-  virtual PP_Var ReceivePassRef(const PP_Var& var,
-                                Dispatcher* dispatcher);
+  virtual PP_Var ReceivePassRef(const PP_Var& var);
   virtual PP_Var BeginSendPassRef(const PP_Var& var);
-  virtual void EndSendPassRef(const PP_Var& var, Dispatcher* dispatcher);
+  virtual void EndSendPassRef(const PP_Var& var);
   virtual void ReleaseObjectRef(const PP_Var& var);
 
  private:
-  PP_Module pp_module_;
-
   DISALLOW_COPY_AND_ASSIGN(HostVarSerializationRules);
 };