Show form validation message as a fallback tooltip.

content/test/test_blink_web_unit_test_support.cc

 // Copyright 2013 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/test/test_blink_web_unit_test_support.h"
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/path_service.h"
@@ skipping 204 matching lines @@
     case blink::WebLocalizedString::OtherWeekLabel:
       return base::ASCIIToUTF16("<<OtherWeekLabel>>");
     case blink::WebLocalizedString::CalendarClear:
       return base::ASCIIToUTF16("<<CalendarClear>>");
     case blink::WebLocalizedString::CalendarToday:
       return base::ASCIIToUTF16("<<CalendarToday>>");
     case blink::WebLocalizedString::ThisMonthButtonLabel:
       return base::ASCIIToUTF16("<<ThisMonthLabel>>");
     case blink::WebLocalizedString::ThisWeekButtonLabel:
       return base::ASCIIToUTF16("<<ThisWeekLabel>>");
+    case blink::WebLocalizedString::ValidationValueMissing:
+      return base::ASCIIToUTF16("<<ValidationValueMissing>>");
     case blink::WebLocalizedString::WeekFormatTemplate:
       return base::ASCIIToUTF16("Week $2, $1");
     default:
       return blink::WebString();
   }
 }
 
 blink::WebString TestBlinkWebUnitTestSupport::queryLocalizedString(
     blink::WebLocalizedString::Name name,
     const blink::WebString& value) {
@@ skipping 132 matching lines @@
   base::MessageLoop::current()->QuitWhenIdle();
 }
 
 void TestBlinkWebUnitTestSupport::getPluginList(
     bool refresh, blink::WebPluginListBuilder* builder) {
   builder->addPlugin("pdf", "pdf", "pdf-files");
   builder->addMediaTypeToLastPlugin("application/pdf", "pdf");
 }
 
 }  // namespace content