It is time.

ui/views/controls/button/button.cc

Index: ui/views/controls/button/button.cc
diff --git a/ui/views/controls/button/button.cc b/ui/views/controls/button/button.cc
deleted file mode 100644
index b9b8b22ab03542119ad079ff21ea64bd9a032fd8..0000000000000000000000000000000000000000
--- a/ui/views/controls/button/button.cc
+++ /dev/null
@@ -1,77 +0,0 @@
-// 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/button.h"
-
-#include "base/strings/utf_string_conversions.h"
-#include "ui/accessibility/ax_view_state.h"
-
-namespace views {
-
-////////////////////////////////////////////////////////////////////////////////
-// Button, static public:
-
-// static
-Button::ButtonState Button::GetButtonStateFrom(ui::NativeTheme::State state) {
-  switch (state) {
-    case ui::NativeTheme::kDisabled:  return Button::STATE_DISABLED;
-    case ui::NativeTheme::kHovered:   return Button::STATE_HOVERED;
-    case ui::NativeTheme::kNormal:    return Button::STATE_NORMAL;
-    case ui::NativeTheme::kPressed:   return Button::STATE_PRESSED;
-    case ui::NativeTheme::kNumStates: NOTREACHED();
-  }
-  return Button::STATE_NORMAL;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// Button, public:
-
-Button::~Button() {
-}
-
-void Button::SetTooltipText(const base::string16& tooltip_text) {
-  tooltip_text_ = tooltip_text;
-  if (accessible_name_.empty())
-    accessible_name_ = tooltip_text_;
-  TooltipTextChanged();
-}
-
-void Button::SetAccessibleName(const base::string16& name) {
-  accessible_name_ = name;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// Button, View overrides:
-
-bool Button::GetTooltipText(const gfx::Point& p,
-                            base::string16* tooltip) const {
-  if (tooltip_text_.empty())
-    return false;
-
-  *tooltip = tooltip_text_;
-  return true;
-}
-
-void Button::GetAccessibleState(ui::AXViewState* state) {
-  state->role = ui::AX_ROLE_BUTTON;
-  state->name = accessible_name_;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// Button, protected:
-
-Button::Button(ButtonListener* listener)
-    : listener_(listener),
-      tag_(-1) {
-  SetAccessibilityFocusable(true);
-}
-
-void Button::NotifyClick(const ui::Event& event) {
-  // We can be called when there is no listener, in cases like double clicks on
-  // menu buttons etc.
-  if (listener_)
-    listener_->ButtonPressed(this, event);
-}
-
-}  // namespace views