Fix WebUIMessageHandler unit tests.

content/browser/webui/web_ui_message_handler.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
 #include "content/public/browser/web_ui_message_handler.h"
 
 #include "base/i18n/rtl.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "base/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
@@ skipping 35 matching lines @@
   double double_value;
   if (value->GetDouble(0, &double_value)) {
     *out_int = static_cast<int>(double_value);
     return true;
   }
   NOTREACHED();
   return false;
 }
 
 bool WebUIMessageHandler::ExtractDoubleValue(const ListValue* value,
-                                            double* out_value) {
+                                             double* out_value) {
   std::string string_value;
   if (value->GetString(0, &string_value))
     return base::StringToDouble(string_value, out_value);
+  if (value->GetDouble(0, out_value))
+    return true;
   NOTREACHED();
   return false;
 }
 
 string16 WebUIMessageHandler::ExtractStringValue(const ListValue* value) {
   string16 string16_value;
   if (value->GetString(0, &string16_value))
     return string16_value;
   NOTREACHED();
   return string16();
 }
 
 }  // namespace content