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chrome/common/localized_error.h

 // Copyright (c) 2011 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_COMMON_LOCALIZED_ERROR_H_
 #define CHROME_COMMON_LOCALIZED_ERROR_H_
 
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
-
-class GURL;
+#include "url/gurl.h"
 
 namespace base {
 class DictionaryValue;
+class ListValue;
 }
 
 namespace extensions {
 class Extension;
 }
 
 namespace blink {
 struct WebURLError;
 }
 
 class LocalizedError {
  public:
+  // Optional parameters that affect the display of an error page.
+  struct ErrorPageParams {
+    ErrorPageParams();
+    ~ErrorPageParams();
+
+    // Overrides whether reloading is suggested.
+    bool suggest_reload;
+
+    // Overrides default suggestions.  Each entry must contain a header and may
+    // optionally contain a body as well.
+    scoped_ptr<base::ListValue> override_suggestions;
+
+    // Prefix to prepend to search terms.  Search box is only shown if this is
+    // a valid url.  Currently only Google searches are supported (Must use
+    // GET with a query parameter named "q").
+    GURL search_url;
+    // Default search terms.  Ignored if |search_prefix| is invalid.
+    std::string search_terms;
+  };
+
   // Fills |error_strings| with values to be used to build an error page used
   // on HTTP errors, like 404 or connection reset.
   static void GetStrings(int error_code,
                          const std::string& error_domain,
                          const GURL& failed_url,
                          bool is_post,
                          const std::string& locale,
                          const std::string& accept_languages,
+                         scoped_ptr<ErrorPageParams> params,
                          base::DictionaryValue* strings);
 
   // Returns a description of the encountered error.
   static base::string16 GetErrorDetails(const blink::WebURLError& error,
                                         bool is_post);
 
   // Returns true if an error page exists for the specified parameters.
   static bool HasStrings(const std::string& error_domain, int error_code);
 
   // Fills |error_strings| with values to be used to build an error page used
   // on HTTP errors, like 404 or connection reset, but using information from
   // the associated |app| in order to make the error page look like it's more
   // part of the app.
   static void GetAppErrorStrings(const GURL& display_url,
                                  const extensions::Extension* app,
                                  base::DictionaryValue* error_strings);
 
   static const char kHttpErrorDomain[];
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(LocalizedError);
 };
 
 #endif  // CHROME_COMMON_LOCALIZED_ERROR_H_