Remove the no-longer used TabButtonGtk class.

chrome/browser/gtk/tabs/tab_button_gtk.cc

-// Copyright (c) 2009 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 "chrome/browser/gtk/tabs/tab_button_gtk.h"
-
-TabButtonGtk::TabButtonGtk(Delegate* delegate)
-    : state_(BS_NORMAL),
-      mouse_pressed_(false),
-      delegate_(delegate) {
-}
-
-TabButtonGtk::~TabButtonGtk() {
-}
-
-bool TabButtonGtk::IsPointInBounds(const gfx::Point& point) {
-  GdkRegion* region = delegate_->MakeRegionForButton(this);
-  if (!region)
-    return bounds_.Contains(point);
-
-  bool in_bounds = (gdk_region_point_in(region, point.x(), point.y()) == TRUE);
-  gdk_region_destroy(region);
-  return in_bounds;
-}
-
-bool TabButtonGtk::OnMotionNotify(GdkEventMotion* event) {
-  ButtonState state;
-
-  gfx::Point point(event->x, event->y);
-  if (IsPointInBounds(point)) {
-    if (mouse_pressed_) {
-      state = BS_PUSHED;
-    } else {
-      state = BS_HOT;
-    }
-  } else {
-    state = BS_NORMAL;
-  }
-
-  bool need_redraw = (state_ != state);
-  state_ = state;
-  return need_redraw;
-}
-
-bool TabButtonGtk::OnMousePress() {
-  if (state_ == BS_HOT) {
-    mouse_pressed_ = true;
-    state_ = BS_PUSHED;
-    return true;
-  }
-
-  return false;
-}
-
-void TabButtonGtk::OnMouseRelease() {
-  mouse_pressed_ = false;
-
-  if (state_ == BS_PUSHED) {
-    delegate_->OnButtonActivate(this);
-
-    // Jiggle the mouse so we re-highlight the Tab button.
-    HighlightTabButton();
-  }
-
-  state_ = BS_NORMAL;
-}
-
-bool TabButtonGtk::OnLeaveNotify() {
-  bool paint = (state_ != BS_NORMAL);
-  state_ = BS_NORMAL;
-  return paint;
-}
-
-void TabButtonGtk::Paint(ChromeCanvasPaint* canvas) {
-  canvas->DrawBitmapInt(images_[state_], bounds_.x(), bounds_.y());
-}
-
-void TabButtonGtk::SetImage(ButtonState state, SkBitmap* bitmap) {
-  images_[state] = bitmap ? *bitmap : SkBitmap();
-}
-
-void TabButtonGtk::HighlightTabButton() {
-  // Get default display and screen.
-  GdkDisplay* display = gdk_display_get_default();
-  GdkScreen* screen = gdk_display_get_default_screen(display);
-
-  // Get cursor position.
-  int x, y;
-  gdk_display_get_pointer(display, NULL, &x, &y, NULL);
-
-  // Reset cusor position.
-  gdk_display_warp_pointer(display, screen, x, y);
-}