Update appearance of invalid textfields in Harmony.

ui/views/controls/textfield/textfield.cc

 // 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 "ui/views/controls/textfield/textfield.h"
 
 #include <string>
 #include <utility>
 
 #include "base/trace_event/trace_event.h"
@@ skipping 234 matching lines @@
       default_width_in_chars_(0),
       use_default_text_color_(true),
       use_default_background_color_(true),
       use_default_selection_text_color_(true),
       use_default_selection_background_color_(true),
       text_color_(SK_ColorBLACK),
       background_color_(SK_ColorWHITE),
       selection_text_color_(SK_ColorWHITE),
       selection_background_color_(SK_ColorBLUE),
       placeholder_text_color_(kDefaultPlaceholderTextColor),
+      invalid_(false),
       text_input_type_(ui::TEXT_INPUT_TYPE_TEXT),
       text_input_flags_(0),
       performing_user_action_(false),
       skip_input_method_cancel_composition_(false),
       drop_cursor_visible_(false),
       initiating_drag_(false),
       aggregated_clicks_(0),
       drag_start_display_offset_(0),
       touch_handles_hidden_due_to_scroll_(false),
       use_focus_ring_(ui::MaterialDesignController::IsSecondaryUiMaterial()),
@@ skipping 251 matching lines @@
   SchedulePaint();
 }
 
 void Textfield::ApplyStyle(gfx::TextStyle style,
                            bool value,
                            const gfx::Range& range) {
   GetRenderText()->ApplyStyle(style, value, range);
   SchedulePaint();
 }
 
+void Textfield::SetInvalid(bool invalid) {
+  if (invalid == invalid_)
+    return;
+  invalid_ = invalid;
+  UpdateBorder();
+
+  if (HasFocus() && use_focus_ring_) {
+    FocusRing::Install(this, invalid_
+                                 ? ui::NativeTheme::kColorId_AlertSeverityHigh
+                                 : ui::NativeTheme::kColorId_NumColors);
+  }
+}
+
 void Textfield::ClearEditHistory() {
   model_->ClearEditHistory();
 }
 
 void Textfield::SetAccessibleName(const base::string16& name) {
   accessible_name_ = name;
 }
 
 bool Textfield::HasTextBeingDragged() {
   return initiating_drag_;
@@ skipping 453 matching lines @@
 
 void Textfield::OnFocus() {
   GetRenderText()->set_focused(true);
   if (ShouldShowCursor())
     GetRenderText()->set_cursor_visible(true);
   if (GetInputMethod())
     GetInputMethod()->SetFocusedTextInputClient(this);
   OnCaretBoundsChanged();
   if (ShouldBlinkCursor())
     StartBlinkingCursor();
-  if (use_focus_ring_)
-    FocusRing::Install(this);
+  if (use_focus_ring_) {
+    FocusRing::Install(this, invalid_
+                                 ? ui::NativeTheme::kColorId_AlertSeverityHigh
+                                 : ui::NativeTheme::kColorId_NumColors);
+  }
   SchedulePaint();
   View::OnFocus();
 }
 
 void Textfield::OnBlur() {
   gfx::RenderText* render_text = GetRenderText();
   render_text->set_focused(false);
   if (GetInputMethod())
     GetInputMethod()->DetachTextInputClient(this);
   StopBlinkingCursor();
@@ skipping 797 matching lines @@
     set_background(Background::CreateSolidBackground(color));
   }
   // Disable subpixel rendering when the background color is transparent
   // because it draws incorrect colors around the glyphs in that case.
   // See crbug.com/115198
   GetRenderText()->set_subpixel_rendering_suppressed(
       SkColorGetA(color) != SK_AlphaOPAQUE);
   SchedulePaint();
 }
 
+void Textfield::UpdateBorder() {
+  auto border = base::MakeUnique<views::FocusableBorder>();
+  if (invalid_)
+    border->SetColorId(ui::NativeTheme::kColorId_AlertSeverityHigh);
+  View::SetBorder(std::move(border));
+}
+
 void Textfield::UpdateAfterChange(bool text_changed, bool cursor_changed) {
   if (text_changed) {
     if (controller_)
       controller_->ContentsChanged(this, text());
     NotifyAccessibilityEvent(ui::AX_EVENT_TEXT_CHANGED, true);
   }
   if (cursor_changed) {
     GetRenderText()->set_cursor_visible(ShouldShowCursor());
     RepaintCursor();
     if (ShouldBlinkCursor())
@@ skipping 253 matching lines @@
 }
 
 void Textfield::OnCursorBlinkTimerFired() {
   DCHECK(ShouldBlinkCursor());
   gfx::RenderText* render_text = GetRenderText();
   render_text->set_cursor_visible(!render_text->cursor_visible());
   RepaintCursor();
 }
 
 }  // namespace views