Update dialog close buttons to use vector icons and ripples.

ui/views/controls/button/vector_icon_button.cc

Index: ui/views/controls/button/vector_icon_button.cc
diff --git a/chrome/browser/ui/views/bar_control_button.cc b/ui/views/controls/button/vector_icon_button.cc
similarity index 76%
rename from chrome/browser/ui/views/bar_control_button.cc
rename to ui/views/controls/button/vector_icon_button.cc
index 74eba4ea5bae55f0c63a65382717e3cb20cd16bd..3190e4a68cd86fd9a3c163b8d51d50f681dcb46c 100644
--- a/chrome/browser/ui/views/bar_control_button.cc
+++ b/ui/views/controls/button/vector_icon_button.cc
@@ -2,15 +2,18 @@
 // 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/bar_control_button.h"
+#include "ui/views/controls/button/vector_icon_button.h"
 
 #include "ui/base/material_design/material_design_controller.h"
+#include "ui/gfx/color_palette.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/gfx/paint_vector_icon.h"
 #include "ui/gfx/vector_icons_public.h"
 #include "ui/views/border.h"
 #include "ui/views/painter.h"
 
+namespace views {
+
 namespace {
 
 // Extra space around the buttons to increase their event target size.
@@ -18,7 +21,7 @@ const int kButtonExtraTouchSize = 4;
 
 }  // namespace
 
-BarControlButton::BarControlButton(views::ButtonListener* listener)
+VectorIconButton::VectorIconButton(views::ButtonListener* listener)
     : views::ImageButton(listener), id_(gfx::VectorIconId::VECTOR_ICON_NONE) {
   if (ui::MaterialDesignController::IsModeMaterial())
     SetInkDropMode(InkDropMode::ON);
@@ -28,9 +31,9 @@ BarControlButton::BarControlButton(views::ButtonListener* listener)
   SetFocusPainter(nullptr);
 }
 
-BarControlButton::~BarControlButton() {}
+VectorIconButton::~VectorIconButton() {}
 
-void BarControlButton::SetIcon(
+void VectorIconButton::SetIcon(
     gfx::VectorIconId id,
     const base::Callback<SkColor(void)>& get_text_color_callback) {
   id_ = id;
@@ -43,8 +46,13 @@ void BarControlButton::SetIcon(
   }
 }
 
-void BarControlButton::OnThemeChanged() {
+void VectorIconButton::OnEnabledChanged() {
+  OnThemeChanged();
+}
+
+void VectorIconButton::OnThemeChanged() {
   SkColor icon_color =
+      get_text_color_callback_.is_null() ? gfx::kChromeIconGrey :
       color_utils::DeriveDefaultIconColor(get_text_color_callback_.Run());
   gfx::ImageSkia image = gfx::CreateVectorIcon(id_, icon_color);
   SetImage(views::CustomButton::STATE_NORMAL, &image);
@@ -53,6 +61,8 @@ void BarControlButton::OnThemeChanged() {
   set_ink_drop_base_color(icon_color);
 }
 
-void BarControlButton::OnNativeThemeChanged(const ui::NativeTheme* theme) {
+void VectorIconButton::OnNativeThemeChanged(const ui::NativeTheme* theme) {
   OnThemeChanged();
 }
+
+}  // namespace views