MD Downloads: reset list tracker when renderer crashes

content/public/browser/web_ui_message_handler.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 CONTENT_PUBLIC_BROWSER_WEB_UI_MESSAGE_HANDLER_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_UI_MESSAGE_HANDLER_H_
 
 #include <vector>
 
 #include "base/gtest_prod_util.h"
@@ skipping 26 matching lines @@
 
  protected:
   FRIEND_TEST_ALL_PREFIXES(WebUIMessageHandlerTest, ExtractIntegerValue);
   FRIEND_TEST_ALL_PREFIXES(WebUIMessageHandlerTest, ExtractDoubleValue);
   FRIEND_TEST_ALL_PREFIXES(WebUIMessageHandlerTest, ExtractStringValue);
 
   // Subclasses must call this once the page is ready for JavaScript calls
   // from this handler.
   void AllowJavascript();
 
+  // Call this when a page should not receive JavaScript messages.
+  void DisallowJavascript();
+
   bool IsJavascriptAllowed() const;
 
   // Helper methods:
 
   // Extract an integer value from a list Value.
   static bool ExtractIntegerValue(const base::ListValue* value, int* out_int);
 
   // Extract a floating point (double) value from a list Value.
   static bool ExtractDoubleValue(const base::ListValue* value,
                                  double* out_value);
@@ skipping 39 matching lines @@
 
  private:
   // Provide external classes access to web_ui(), set_web_ui(), and
   // RenderViewReused.
   friend class WebUIImpl;
   friend class ::WebUIBrowserTest;
 
   // Called when a RenderView is reused to display a page (i.e. reload).
   void RenderViewReused();
 
+  // TODO(dbeam): disallow JavaScript when a renderer process crashes.
+
   // True if the page is for JavaScript calls from this handler.
   bool javascript_allowed_;
 
   WebUI* web_ui_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_UI_MESSAGE_HANDLER_H_