views: Convert IsEnabled() to just enabled() since it's just a simple accessor.

ui/views/controls/button/custom_button.cc

 // Copyright (c) 2011 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/button/custom_button.h"
 
 #include "ui/base/accessibility/accessible_view_state.h"
 #include "ui/base/animation/throb_animation.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/gfx/screen.h"
@@ skipping 76 matching lines @@
     GetWidget()->NotifyAccessibilityEvent(
         this, ui::AccessibilityTypes::EVENT_FOCUS, true);
   }
 }
 
 bool CustomButton::IsHotTracked() const {
   return state_ == BS_HOT;
 }
 
 void CustomButton::OnEnabledChanged() {
-  if (View::IsEnabled() ? (state_ != BS_DISABLED) : (state_ == BS_DISABLED))
+  if (enabled() ? (state_ != BS_DISABLED) : (state_ == BS_DISABLED))
     return;
 
-  if (View::IsEnabled())
+  if (enabled())
     SetState(IsMouseHovered() ? BS_HOT : BS_NORMAL);
   else
     SetState(BS_DISABLED);
 }
 
-bool CustomButton::IsEnabled() const {
-  return state_ != BS_DISABLED;
-}
-
 std::string CustomButton::GetClassName() const {
   return kViewClassName;
 }
 
 bool CustomButton::OnMousePressed(const MouseEvent& event) {
   if (state_ != BS_DISABLED) {
     if (ShouldEnterPushedState(event) && HitTest(event.location()))
       SetState(BS_PUSHED);
     if (request_focus_on_press_)
       RequestFocus();
@@ skipping 71 matching lines @@
 bool CustomButton::OnKeyReleased(const KeyEvent& event) {
   if ((state_ == BS_DISABLED) || (event.key_code() != ui::VKEY_SPACE))
     return false;
 
   SetState(BS_NORMAL);
   NotifyClick(event);
   return true;
 }
 
 bool CustomButton::AcceleratorPressed(const ui::Accelerator& accelerator) {
-  if (!View::IsEnabled())
+  if (!enabled())
     return false;
 
   SetState(BS_NORMAL);
   KeyEvent key_event(ui::ET_KEY_RELEASED, accelerator.key_code(),
                      accelerator.modifiers());
   NotifyClick(key_event);
   return true;
 }
 
 void CustomButton::ShowContextMenu(const gfx::Point& p, bool is_mouse_gesture) {
@@ skipping 74 matching lines @@
 bool CustomButton::IsFocusable() const {
   return (state_ != BS_DISABLED) && View::IsFocusable();
 }
 
 void CustomButton::OnBlur() {
   if (IsHotTracked())
     SetState(BS_NORMAL);
 }
 
 }  // namespace views