Update appearance of invalid textfields in Harmony.

ui/views/controls/textfield/textfield.h

 // 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.
 
 #ifndef UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_
 #define UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 145 matching lines @@
   // Sets the text to display when empty.
   void set_placeholder_text(const base::string16& text) {
     placeholder_text_ = text;
   }
   base::string16 GetPlaceholderText() const;
 
   void set_placeholder_text_color(SkColor color) {
     placeholder_text_color_ = color;
   }
 
+  // Sets whether to indicate the textfield has invalid content.
+  void SetInvalid(bool invalid);
+  bool invalid() const { return invalid_; }
+
   // Get or set the horizontal alignment used for the button from the underlying
   // RenderText object.
   gfx::HorizontalAlignment GetHorizontalAlignment() const;
   void SetHorizontalAlignment(gfx::HorizontalAlignment alignment);
 
   // Displays a virtual keyboard or alternate input view if enabled.
   void ShowImeIfNeeded();
 
   // Returns whether or not an IME is composing text.
   bool IsIMEComposing() const;
@@ skipping 166 matching lines @@
   bool OnKeyReleased(const ui::KeyEvent& event) final;
 
   // Handles a request to change the value of this text field from software
   // using an accessibility API (typically automation software, screen readers
   // don't normally use this). Sets the value and clears the selection.
   void AccessibilitySetValue(const base::string16& new_value);
 
   // Updates the painted background color.
   void UpdateBackgroundColor();
 
+  // Updates the border per the state of |invalid_|.
+  void UpdateBorder();
+
   // Does necessary updates when the text and/or cursor position changes.
   void UpdateAfterChange(bool text_changed, bool cursor_changed);
 
   // A callback function to periodically update the cursor state.
   void UpdateCursor();
 
   // Repaint the cursor.
   void RepaintCursor();
 
   void PaintTextAndCursor(gfx::Canvas* canvas);
@@ skipping 95 matching lines @@
   SkColor selection_text_color_;
   SkColor selection_background_color_;
 
   // Text to display when empty.
   base::string16 placeholder_text_;
 
   // Placeholder text color.
   // TODO(estade): remove this when Harmony/MD is default.
   SkColor placeholder_text_color_;
 
+  // True when the contents are deemed unacceptable and should be indicated as
+  // such.
+  bool invalid_;
+
   // The accessible name of the text field.
   base::string16 accessible_name_;
 
   // The input type of this text field.
   ui::TextInputType text_input_type_;
 
   // The input flags of this text field.
   int text_input_flags_;
 
   // The timer to reveal the last typed password character.
@@ skipping 47 matching lines @@
 
   // Used to bind callback functions to this object.
   base::WeakPtrFactory<Textfield> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Textfield);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_