Add ability to limit when context menu items appear with url patterns....

chrome/browser/extensions/extension_context_menu_api.h

 // Copyright (c) 2010 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_CONTEXT_MENU_API_H__
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_CONTEXT_MENU_API_H__
 
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/browser/extensions/extension_menu_manager.h"
+#include "chrome/common/extensions/extension_extent.h"
+
+class ExtensionMenuItem;
 
 class ExtensionContextMenuFunction : public SyncExtensionFunction {
  public:
   ~ExtensionContextMenuFunction() {}
 
  protected:
   // Helper function to read and parse a list of menu item contexts.
   bool ParseContexts(const DictionaryValue& properties,
                      const wchar_t* key,
                      ExtensionMenuItem::ContextList* result);
 
   // Looks in properties for the "type" key, and reads the value in |result|. On
   // error, returns false and puts an error message into error_. If the key is
   // not present, |result| is set to |default_value| and the return value is
   // true.
   bool ParseType(const DictionaryValue& properties,
                  const ExtensionMenuItem::Type& default_value,
                  ExtensionMenuItem::Type* result);
 
   // Helper to read and parse the "checked" property.
   bool ParseChecked(ExtensionMenuItem::Type type,
                     const DictionaryValue& properties,
                     bool default_value,
                     bool* checked);
 
+  // Helper to read in a set of url patterns from a property with the given key
+  // name.
+  bool ParseURLPatterns(const DictionaryValue& properties,
+                        const wchar_t* key,
+                        ExtensionExtent* result);
+
+  // Reads in any document and targetUrl patterns from |properties| and sets
+  // them on |item|.
+  bool SetURLPatterns(const DictionaryValue& properties,
+                      ExtensionMenuItem* item);
+
   // If the parentId key was specified in properties, this will try looking up
   // an ExtensionMenuItem with that id and set it into |result|. Returns false
   // on error, with an explanation written into error_. Note that if the
   // parentId key is not in properties, this will return true and leave |result|
   // unset. Also, it is considered an error if the item found has a type other
   // than NORMAL.
   bool GetParent(const DictionaryValue& properties,
                  const ExtensionMenuManager& manager,
                  ExtensionMenuItem** result);
 };
@@ skipping 16 matching lines @@
   DECLARE_EXTENSION_FUNCTION_NAME("contextMenus.remove")
 };
 
 class RemoveAllContextMenusFunction : public ExtensionContextMenuFunction {
   ~RemoveAllContextMenusFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("contextMenus.removeAll")
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_CONTEXT_MENU_API_H__