Revert of media: add video capture device for ARC++ camera HAL v3

media/capture/video/chromeos/display_rotation_observer.cc

Index: media/capture/video/chromeos/display_rotation_observer.cc
diff --git a/media/capture/video/chromeos/display_rotation_observer.cc b/media/capture/video/chromeos/display_rotation_observer.cc
deleted file mode 100644
index e1d5de3760fbe189c438b4f0a1a4c65d991f9a7d..0000000000000000000000000000000000000000
--- a/media/capture/video/chromeos/display_rotation_observer.cc
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright 2017 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 "media/capture/video/chromeos/display_rotation_observer.h"
-
-#include <utility>
-
-#include "base/bind.h"
-#include "base/threading/thread_task_runner_handle.h"
-
-namespace media {
-
-ScreenObserverDelegate::ScreenObserverDelegate(
-    DisplayRotationObserver* observer,
-    scoped_refptr<base::SingleThreadTaskRunner> display_task_runner)
-    : observer_(observer),
-      display_task_runner_(std::move(display_task_runner)),
-      delegate_task_runner_(base::ThreadTaskRunnerHandle::Get()) {
-  display_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&ScreenObserverDelegate::AddObserverOnDisplayThread, this));
-}
-
-void ScreenObserverDelegate::RemoveObserver() {
-  DCHECK(delegate_task_runner_->BelongsToCurrentThread());
-  observer_ = NULL;
-  display_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&ScreenObserverDelegate::RemoveObserverOnDisplayThread, this));
-}
-
-ScreenObserverDelegate::~ScreenObserverDelegate() {
-  DCHECK(!observer_);
-}
-
-void ScreenObserverDelegate::OnDisplayAdded(
-    const display::Display& /*new_display*/) {}
-
-void ScreenObserverDelegate::OnDisplayRemoved(
-    const display::Display& /*old_display*/) {}
-
-void ScreenObserverDelegate::OnDisplayMetricsChanged(
-    const display::Display& display,
-    uint32_t metrics) {
-  DCHECK(display_task_runner_->BelongsToCurrentThread());
-  if (!(metrics & DISPLAY_METRIC_ROTATION))
-    return;
-  SendDisplayRotation(display);
-}
-
-void ScreenObserverDelegate::AddObserverOnDisplayThread() {
-  DCHECK(display_task_runner_->BelongsToCurrentThread());
-  display::Screen* screen = display::Screen::GetScreen();
-  if (screen) {
-    screen->AddObserver(this);
-    SendDisplayRotation(screen->GetPrimaryDisplay());
-  }
-}
-
-void ScreenObserverDelegate::RemoveObserverOnDisplayThread() {
-  DCHECK(display_task_runner_->BelongsToCurrentThread());
-  display::Screen* screen = display::Screen::GetScreen();
-  if (screen) {
-    screen->RemoveObserver(this);
-  }
-}
-
-// Post the screen rotation change from the UI thread to capture thread
-void ScreenObserverDelegate::SendDisplayRotation(
-    const display::Display& display) {
-  DCHECK(display_task_runner_->BelongsToCurrentThread());
-  delegate_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&ScreenObserverDelegate::SendDisplayRotationOnCaptureThread,
-                 this, display));
-}
-
-void ScreenObserverDelegate::SendDisplayRotationOnCaptureThread(
-    const display::Display& display) {
-  DCHECK(delegate_task_runner_->BelongsToCurrentThread());
-  if (observer_)
-    observer_->SetDisplayRotation(display);
-}
-
-}  // namespace media