For extension context menus, only apply targetUrlPatterns to appropriate contexts.

chrome/browser/tab_contents/render_view_context_menu.h

Index: chrome/browser/tab_contents/render_view_context_menu.h
diff --git a/chrome/browser/tab_contents/render_view_context_menu.h b/chrome/browser/tab_contents/render_view_context_menu.h
index fb308ae97f11c53cb38724c84ffccb3e00cfb612..bd6bd0f0f4a3614916fd29fa8ca892afe920153e 100644
--- a/chrome/browser/tab_contents/render_view_context_menu.h
+++ b/chrome/browser/tab_contents/render_view_context_menu.h
@@ -78,8 +78,19 @@ class RenderViewContextMenu : public ui::SimpleMenuModel::Delegate {
   std::map<int, ExtensionMenuItem::Id> extension_item_map_;
 
  private:
+  friend class RenderViewContextMenuTest;
+
   static bool IsDevToolsURL(const GURL& url);
   static bool IsInternalResourcesURL(const GURL& url);
+  static bool ExtensionContextAndPatternMatch(
+      const ContextMenuParams& params,
+      ExtensionMenuItem::ContextList contexts,
+      const URLPatternSet& target_url_patterns);
+  static ExtensionMenuItem::List GetRelevantExtensionItems(
+      const ExtensionMenuItem::List& items,
+      const ContextMenuParams& params,
+      Profile* profile,
+      bool can_cross_incognito);
   bool AppendCustomItems();
   void AppendDeveloperItems();
   void AppendLinkItems();