Remove Virtual Terminal Manager.

VT is disabled with Freon. VTM is not really needed anymore and thus removing this.

Review URL: https://codereview.chromium.org/696983002

Cr-Commit-Position: refs/heads/master@{#302519}

ui/ozone/platform/dri/BUILD.gn

@@ -58,8 +58,6 @@ source_set("dri_common") {
     "screen_manager.cc",
     "screen_manager.h",
     "scanout_buffer.h",
-    "virtual_terminal_manager.cc",
-    "virtual_terminal_manager.h",
   ]
 
   deps = [

ui/ozone/platform/dri/dri.gypi

@@ -84,8 +84,6 @@
         'screen_manager.cc',
         'screen_manager.h',
         'scanout_buffer.h',
-        'virtual_terminal_manager.cc',
-        'virtual_terminal_manager.h',
       ],
       'conditions': [
         ['use_drm_atomic_flip==1', {

ui/ozone/platform/dri/ozone_platform_dri.cc

@@ -21,7 +21,6 @@
 #include "ui/ozone/platform/dri/dri_wrapper.h"
 #include "ui/ozone/platform/dri/native_display_delegate_dri.h"
 #include "ui/ozone/platform/dri/screen_manager.h"
-#include "ui/ozone/platform/dri/virtual_terminal_manager.h"
 #include "ui/ozone/public/ozone_platform.h"
 #include "ui/ozone/public/ui_thread_gpu.h"
 
@@ -38,8 +37,7 @@ const char kDefaultGraphicsCardPath[] = "/dev/dri/card0";
 class OzonePlatformDri : public OzonePlatform {
  public:
   OzonePlatformDri()
-      : vt_manager_(new VirtualTerminalManager()),
-        dri_(new DriWrapper(kDefaultGraphicsCardPath)),
+      : dri_(new DriWrapper(kDefaultGraphicsCardPath)),
         buffer_generator_(new DriBufferGenerator(dri_.get())),
         screen_manager_(new ScreenManager(dri_.get(),
                                           buffer_generator_.get())),
@@ -104,7 +102,6 @@ class OzonePlatformDri : public OzonePlatform {
   virtual void InitializeGPU() override {}
 
  private:
-  scoped_ptr<VirtualTerminalManager> vt_manager_;
   scoped_ptr<DriWrapper> dri_;
   scoped_ptr<DriBufferGenerator> buffer_generator_;
   scoped_ptr<ScreenManager> screen_manager_;

ui/ozone/platform/dri/ozone_platform_gbm.cc

@@ -27,7 +27,6 @@
 #include "ui/ozone/platform/dri/native_display_delegate_proxy.h"
 #include "ui/ozone/platform/dri/scanout_buffer.h"
 #include "ui/ozone/platform/dri/screen_manager.h"
-#include "ui/ozone/platform/dri/virtual_terminal_manager.h"
 #include "ui/ozone/public/cursor_factory_ozone.h"
 #include "ui/ozone/public/gpu_platform_support.h"
 #include "ui/ozone/public/gpu_platform_support_host.h"
@@ -112,7 +111,6 @@ class OzonePlatformGbm : public OzonePlatform {
         gpu_platform_support_host_.get(), device_manager_.get()));
   }
   virtual void InitializeUI() override {
-    vt_manager_.reset(new VirtualTerminalManager());
     // Needed since the browser process creates the accelerated widgets and that
     // happens through SFO.
     surface_factory_ozone_.reset(new GbmSurfaceFactory(use_surfaceless_));
@@ -152,7 +150,6 @@ class OzonePlatformGbm : public OzonePlatform {
 
  private:
   bool use_surfaceless_;
-  scoped_ptr<VirtualTerminalManager> vt_manager_;
   scoped_ptr<DriWrapper> dri_;
   scoped_ptr<GbmBufferGenerator> buffer_generator_;
   scoped_ptr<ScreenManager> screen_manager_;

ui/ozone/platform/dri/virtual_terminal_manager.cc

-// Copyright 2014 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/ozone/platform/dri/virtual_terminal_manager.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <linux/kd.h>
-#include <linux/vt.h>
-#include <sys/ioctl.h>
-#include <unistd.h>
-
-#include "base/logging.h"
-
-namespace ui {
-
-namespace {
-
-const char kTTYDevice[] = "/dev/tty1";
-
-const int kVT = 1;
-
-}  // namespace
-
-VirtualTerminalManager::VirtualTerminalManager() {
-  // Use the current console.
-  fd_ = open(kTTYDevice, O_RDWR | O_CLOEXEC, 0);
-  if (fd_ < 0)
-    LOG(ERROR) << "Failed to open '" << kTTYDevice << "' " << strerror(errno);
-
-  if (ioctl(fd_, VT_ACTIVATE, kVT) || ioctl(fd_, VT_WAITACTIVE, kVT))
-    LOG(ERROR) << "Failed to switch to VT: " << kVT
-               << " error: " << strerror(errno);;
-
-  if (ioctl(fd_, KDGETMODE, &vt_mode_))
-    LOG(ERROR) << "Failed to get VT mode: " << strerror(errno);
-
-  if (ioctl(fd_, KDSETMODE, KD_GRAPHICS))
-    LOG(ERROR) << "Failed to set graphics mode: " << strerror(errno);
-
-  if (tcgetattr(fd_, &terminal_attributes_))
-    LOG(ERROR) << "Failed to get terminal attributes";
-
-  // Stop the TTY from processing keys and echo-ing them to the terminal.
-  struct termios raw_attributes = terminal_attributes_;
-  cfmakeraw(&raw_attributes);
-  raw_attributes.c_oflag |= OPOST;
-  if (tcsetattr(fd_, TCSANOW, &raw_attributes))
-    LOG(ERROR) << "Failed to set raw attributes";
-
-  if (ioctl(fd_, KDGKBMODE, &previous_keyboard_mode_))
-    LOG(ERROR) << "Failed to get keyboard mode";
-
-  if (ioctl(fd_, KDSKBMODE, K_OFF) && ioctl(fd_, KDSKBMODE, K_RAW))
-    LOG(ERROR) << "Failed to set keyboard mode";
-}
-
-VirtualTerminalManager::~VirtualTerminalManager() {
-  if (fd_ < 0)
-    return;
-
-  if (ioctl(fd_, KDSETMODE, &vt_mode_))
-    LOG(ERROR) << "Failed to restore VT mode";
-
-  if (ioctl(fd_, KDSKBMODE, previous_keyboard_mode_))
-    LOG(ERROR) << "Failed to restore keyboard mode";
-
-  if (tcsetattr(fd_, TCSANOW, &terminal_attributes_))
-    LOG(ERROR) << "Failed to restore terminal attributes";
-
-  close(fd_);
-}
-
-}  // namespace ui

ui/ozone/platform/dri/virtual_terminal_manager.h

-// Copyright 2014 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.
-
-#ifndef UI_OZONE_PLATFORM_DRI_VIRTUAL_TERMINAL_MANAGER_H_
-#define UI_OZONE_PLATFORM_DRI_VIRTUAL_TERMINAL_MANAGER_H_
-
-#include <termios.h>
-
-#include "base/basictypes.h"
-
-namespace ui {
-
-class VirtualTerminalManager {
- public:
-  VirtualTerminalManager();
-  ~VirtualTerminalManager();
-
- private:
-
-  int fd_;
-  int vt_mode_;
-  int previous_keyboard_mode_;
-  struct termios terminal_attributes_;
-
-  DISALLOW_COPY_AND_ASSIGN(VirtualTerminalManager);
-};
-
-}  // namespace ui
-
-#endif  // UI_OZONE_PLATFORM_DRI_VIRTUAL_TERMINAL_MANAGER_H_