[Payments] Changes to validation in the Credit Card editor

chrome/browser/ui/views/payments/validating_textfield_unittest.cc

 // Copyright 2017 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 "chrome/browser/ui/views/payments/validating_textfield.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/macros.h"
@@ skipping 10 matching lines @@
   ValidatingTextfieldTest() {}
   ~ValidatingTextfieldTest() override {}
 
  protected:
   class TestValidationDelegate : public ValidationDelegate {
    public:
     TestValidationDelegate() {}
     ~TestValidationDelegate() override {}
 
     // ValidationDelegate:
-    bool TextfieldValueChanged(views::Textfield* textfield) override {
-      return IsValidTextfield(textfield);
+    bool TextfieldValueChanged(views::Textfield* textfield,
+                               bool was_blurred) override {
+      return !was_blurred || IsValidTextfield(textfield);
     }
     bool ComboboxValueChanged(views::Combobox* combobox) override {
       return IsValidCombobox(combobox);
     }
     bool IsValidTextfield(views::Textfield* textfield) override {
       // We really don't like textfields with more than 5 characters in them.
       return textfield->text().size() <= 5u;
     }
     bool IsValidCombobox(views::Combobox* combobox) override { return true; }
     void ComboboxModelChanged(views::Combobox* combobox) override {}
@@ skipping 27 matching lines @@
   // On further text adjustements, the validation runs now. Set a valid string
   // (<=5 characters).
   textfield->SetText(base::ASCIIToUTF16("good"));
   textfield->OnContentsChanged();
 
   // No longer invalid.
   EXPECT_FALSE(textfield->invalid());
 }
 
 }  // namespace payments