Remove browser support for non-PPAPI nexes

ppapi/native_client/src/trusted/plugin/scriptable_handle.h

Index: ppapi/native_client/src/trusted/plugin/scriptable_handle.h
===================================================================
--- ppapi/native_client/src/trusted/plugin/scriptable_handle.h	(revision 121747)
+++ ppapi/native_client/src/trusted/plugin/scriptable_handle.h	(working copy)
@@ -28,31 +28,22 @@
 namespace plugin {
 
 // Forward declarations for externals.
-class DescBasedHandle;
 class Plugin;
 
 // ScriptableHandle encapsulates objects that are scriptable from the browser.
 class ScriptableHandle : public pp::deprecated::ScriptableObject {
  public:
-  // Factory methods for creation.
+  // Factory method.
   static ScriptableHandle* NewPlugin(Plugin* plugin);
-  static ScriptableHandle* NewDescHandle(DescBasedHandle* desc_handle);
 
   // If not NULL, this var should be reused to pass this object to the browser.
   pp::VarPrivate* var() { return var_; }
 
-  // Check that a pointer is to a validly created ScriptableHandle.
-  static bool is_valid(const ScriptableHandle* handle);
   static void Unref(ScriptableHandle** handle);
 
   // Get the contained plugin object.  NULL if this contains a descriptor.
   Plugin* plugin() const { return plugin_; }
 
-  // Get the contained descriptor object.  NULL if this contains a plugin.
-  // OBSOLETE -- this support is only needed for SRPC descriptor passing.
-  // TODO(polina): Remove this support when SRPC descriptor passing is removed.
-  DescBasedHandle* desc_handle() const { return desc_handle_; }
-
   // This function is called when we are about to share the object owned by the
   // plugin with the browser. Since reference counting on the browser side is
   // handled via pp::Var's, we create the var() here if not created already.
@@ -100,7 +91,6 @@
   // Prevent construction from outside the class: must use factory New()
   // method instead.
   explicit ScriptableHandle(Plugin* plugin);
-  explicit ScriptableHandle(DescBasedHandle* desc_handle);
   // This will be called when both the plugin and the browser clear all
   // references to this object.
   virtual ~ScriptableHandle();
@@ -123,10 +113,6 @@
 
   // The contained plugin object.
   Plugin* plugin_;
-  // OBSOLETE -- this support is only needed for SRPC descriptor passing.
-  // TODO(polina): Remove this support when SRPC descriptor passing is removed.
-  // The contained descriptor handle object.
-  DescBasedHandle* desc_handle_;
 };
 
 }  // namespace plugin