Track NPObject ownership by the originating plugins' NPP identifier. [2/3] (Chrome)

webkit/plugins/ppapi/ppapi_plugin_instance.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 WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_
 #define WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 40 matching lines @@
 #include "third_party/WebKit/Source/Platform/chromium/public/WebURLResponse.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPlugin.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebUserGestureToken.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/gfx/rect.h"
 #include "webkit/plugins/ppapi/plugin_delegate.h"
 #include "webkit/plugins/ppapi/ppp_pdf.h"
 #include "webkit/plugins/webkit_plugins_export.h"
 
 struct PP_Point;
+struct _NPP;
 
 class SkBitmap;
 class TransportDIB;
 
 namespace WebKit {
 class WebInputEvent;
 class WebLayer;
 class WebMouseEvent;
 class WebPluginContainer;
 class WebURLLoader;
@@ skipping 424 matching lines @@
   // to an untrusted NaCl out-of-process instance.
   PP_NaClResult ResetAsProxied(scoped_refptr<PluginModule> module);
 
   // Checks whether this is a valid instance of the given module. After calling
   // ResetAsProxied above, a NaCl plugin instance's module changes, so external
   // hosts won't recognize it as a valid instance of the original module. This
   // method fixes that be checking that either module_ or original_module_ match
   // the given module.
   bool IsValidInstanceOf(PluginModule* module);
 
+  // Returns the plugin NPP identifier that this plugin will use to identify
+  // itself when making NPObject scripting calls to WebBindings.
+  struct _NPP* instanceNPP();
+
  private:
   friend class PpapiUnittest;
 
   // Class to record document load notifications and play them back once the
   // real document loader becomes available. Used only by NaCl instances.
   class NaClDocumentLoader : public WebKit::WebURLLoaderClient {
    public:
     NaClDocumentLoader();
     virtual ~NaClDocumentLoader();
 
@@ skipping 312 matching lines @@
   WebKit::WebURLLoaderClient* document_loader_;
   // State for deferring document loads. Used only by NaCl instances.
   WebKit::WebURLResponse nacl_document_response_;
   scoped_ptr<NaClDocumentLoader> nacl_document_loader_;
   bool nacl_document_load_;
 
   // The ContentDecryptorDelegate forwards PPP_ContentDecryptor_Private
   // calls and handles PPB_ContentDecryptor_Private calls.
   scoped_ptr<ContentDecryptorDelegate> content_decryptor_delegate_;
 
+  // Dummy NPP value used when calling in to WebBindings, to allow the bindings
+  // to correctly track NPObjects belonging to this plugin instance.
+  scoped_ptr<struct _NPP> npp_;
+
   friend class PpapiPluginInstanceTest;
   DISALLOW_COPY_AND_ASSIGN(PluginInstance);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_