Add notifications for when V8Proxy creates or destroys a V8 Context.

webkit/glue/webframe.h

 // Copyright (c) 2006-2009 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_GLUE_WEBFRAME_H_
 #define WEBKIT_GLUE_WEBFRAME_H_
 
 #include <vector>
 
 #include "base/scoped_ptr.h"
 #include "base/string16.h"
 #include "skia/ext/bitmap_platform_device.h"
 #include "skia/ext/platform_canvas.h"
+#include "webkit/api/public/WebCommon.h"
 
 class GURL;
 class WebAppCacheContext;
 class WebView;
 class WebTextInput;
 struct NPObject;
 
 namespace WebKit {
 class WebDataSource;
 class WebForm;
 class WebHistoryItem;
 class WebURLRequest;
 struct WebConsoleMessage;
 struct WebFindOptions;
 struct WebRect;
 struct WebScriptSource;
 struct WebSize;
 struct WebURLError;
 }
 
+#if WEBKIT_USING_V8
+namespace v8 {
+  template <class T> class Local;
+  class Context;
+}
+#endif
+
 // Every frame in a web page is represented by one WebFrame, including the
 // outermost frame.
 class WebFrame {
  public:
   WebFrame() {}
 
   // The two functions below retrieve WebFrame instances relating the currently
   // executing JavaScript. Since JavaScript can make function calls across
   // frames, though, we need to be more precise.
   //
@@ skipping 19 matching lines @@
 
   virtual void CallJSGC() = 0;
 
   // This grants the currently loaded Document access to all security origins
   // (including file URLs).  Use with care.  The access is revoked when a new
   // document is loaded into this frame.
   virtual void GrantUniversalAccess() = 0;
 
   virtual NPObject* GetWindowNPObject() = 0;
 
+#if WEBKIT_USING_V8
+  // Returns the V8 context for this frame, or an empty handle if there is
+  // none.
+  virtual v8::Local<v8::Context> GetScriptContext() = 0;
+#endif
+
   // Loads the given WebURLRequest.
   virtual void LoadRequest(const WebKit::WebURLRequest& request) = 0;
 
   // Loads the given WebHistoryItem.  This corresponds to a back/forward
   // navigation.
   virtual void LoadHistoryItem(const WebKit::WebHistoryItem& item) = 0;
 
   // This method is short-hand for calling LoadAlternateHTMLString with a dummy
   // request for the given base_url.
   virtual void LoadHTMLString(const std::string& html_text,
@@ skipping 338 matching lines @@
   virtual int PendingFrameUnloadEventCount() const = 0;
 
  protected:
   virtual ~WebFrame() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebFrame);
 };
 
 #endif  // WEBKIT_GLUE_WEBFRAME_H_