Remove obsolete app_list Linux code.

chrome/browser/ui/views/app_list/linux/app_list_linux.cc

Index: chrome/browser/ui/views/app_list/linux/app_list_linux.cc
diff --git a/chrome/browser/ui/views/app_list/linux/app_list_linux.cc b/chrome/browser/ui/views/app_list/linux/app_list_linux.cc
deleted file mode 100644
index 8333480a2839e542e39be17fa24b34e293f26ee4..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/views/app_list/linux/app_list_linux.cc
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright 2013 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/ui/views/app_list/linux/app_list_linux.h"
-
-#include "build/build_config.h"
-#include "ui/app_list/app_list_switches.h"
-#include "ui/app_list/views/app_list_view.h"
-#include "ui/display/screen.h"
-#include "ui/views/linux_ui/linux_ui.h"
-#include "ui/views/widget/widget.h"
-
-// static
-AppListPositioner::ScreenEdge AppListLinux::ShelfLocationInDisplay(
-    const display::Display& display) {
-  // On Linux, it is difficult to find the shelf (due to the large variety of
-  // desktop environments). The shelf can usually be found on the edge where the
-  // display edge and work area do not match up, but there can be more than one
-  // such edge. The shelf is assumed to be on the side of the screen with the
-  // largest delta between the display edge and the work area edge. Ties are
-  // broken in the order: top, left, right, bottom.
-  const gfx::Rect work_area = display.work_area();
-  const gfx::Rect display_bounds = display.bounds();
-
-  int winning_margin = 0;
-  AppListPositioner::ScreenEdge winning_edge =
-      AppListPositioner::SCREEN_EDGE_UNKNOWN;
-
-  if (work_area.y() - display_bounds.y() > winning_margin) {
-    winning_margin = work_area.y() - display_bounds.y();
-    winning_edge = AppListPositioner::SCREEN_EDGE_TOP;
-  }
-
-  if (work_area.x() - display_bounds.x() > winning_margin) {
-    winning_margin = work_area.x() - display_bounds.x();
-    winning_edge = AppListPositioner::SCREEN_EDGE_LEFT;
-  }
-
-  if (display_bounds.right() - work_area.right() > winning_margin) {
-    winning_margin = display_bounds.right() - work_area.right();
-    winning_edge = AppListPositioner::SCREEN_EDGE_RIGHT;
-  }
-
-  if (display_bounds.bottom() - work_area.bottom() > winning_margin) {
-    winning_margin = display_bounds.bottom() - work_area.bottom();
-    winning_edge = AppListPositioner::SCREEN_EDGE_BOTTOM;
-  }
-
-  return winning_edge;
-}
-
-// static
-gfx::Point AppListLinux::FindAnchorPoint(const gfx::Size& view_size,
-                                         const display::Display& display,
-                                         const gfx::Point& cursor,
-                                         AppListPositioner::ScreenEdge edge,
-                                         bool center_window) {
-  AppListPositioner positioner(display, view_size, 0);
-
-  // Special case for app list in the center of the screen.
-  if (center_window)
-    return positioner.GetAnchorPointForScreenCenter();
-
-  gfx::Point anchor;
-  // Snap to the shelf edge. If the cursor is greater than the window
-  // width/height away, anchor to the corner. Otherwise, anchor to the cursor
-  // position.
-  if (edge == AppListPositioner::SCREEN_EDGE_UNKNOWN) {
-    // If we can't find the shelf, snap to the top left.
-    return positioner.GetAnchorPointForScreenCorner(
-        AppListPositioner::SCREEN_CORNER_TOP_LEFT);
-  }
-
-  int snap_distance = edge == AppListPositioner::SCREEN_EDGE_BOTTOM ||
-                              edge == AppListPositioner::SCREEN_EDGE_TOP
-                          ? view_size.height()
-                          : view_size.width();
-  if (positioner.GetCursorDistanceFromShelf(edge, cursor) > snap_distance)
-    return positioner.GetAnchorPointForShelfCorner(edge);
-
-  return positioner.GetAnchorPointForShelfCursor(edge, cursor);
-}
-
-// static
-void AppListLinux::MoveNearCursor(app_list::AppListView* view) {
-  display::Screen* screen = display::Screen::GetScreen();
-  gfx::Point cursor = screen->GetCursorScreenPoint();
-  display::Display display = screen->GetDisplayNearestPoint(cursor);
-
-  view->SetBubbleArrow(views::BubbleBorder::FLOAT);
-
-  AppListPositioner::ScreenEdge edge;
-#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
-  // In the Unity desktop environment, special case SCREEN_EDGE_LEFT. It is
-  // always on the left side in Unity, but ShelfLocationInDisplay will not
-  // detect this if the shelf is hidden.
-  // TODO(mgiuca): Apply this special case in Gnome Shell also. The same logic
-  // applies, but we currently have no way to detect whether Gnome Shell is
-  // running.
-  views::LinuxUI* ui = views::LinuxUI::instance();
-  if (ui && ui->UnityIsRunning())
-    edge = AppListPositioner::SCREEN_EDGE_LEFT;
-  else
-#endif
-    edge = ShelfLocationInDisplay(display);
-  view->SetAnchorPoint(FindAnchorPoint(view->GetPreferredSize(),
-                                       display,
-                                       cursor,
-                                       edge,
-                                       view->ShouldCenterWindow()));
-}