Revert of Android: support multiple displays on C++ side

ui/android/display_android_manager.h

Index: ui/android/display_android_manager.h
diff --git a/ui/android/display_android_manager.h b/ui/android/display_android_manager.h
deleted file mode 100644
index 9eae6fac7383d25f316096e608828bd690412835..0000000000000000000000000000000000000000
--- a/ui/android/display_android_manager.h
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright 2016 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_ANDROID_DISPLAY_ANDROID_MANAGER_H_
-#define UI_ANDROID_DISPLAY_ANDROID_MANAGER_H_
-
-#include <jni.h>
-
-#include "base/android/jni_android.h"
-#include "base/macros.h"
-#include "ui/display/screen_base.h"
-
-namespace ui {
-
-class DisplayAndroidManager : public display::ScreenBase {
- public:
-  ~DisplayAndroidManager() override;
-
-  // Screen interface.
-
-  display::Display GetDisplayNearestWindow(gfx::NativeView view) const override;
-  display::Display GetDisplayNearestPoint(
-      const gfx::Point& point) const override;
-  display::Display GetDisplayMatching(
-      const gfx::Rect& match_rect) const override;
-
-  // Methods called from Java.
-
-  void UpdateDisplay(JNIEnv* env,
-                     const base::android::JavaParamRef<jobject>& jobject,
-                     jint sdkDisplayId,
-                     jint physicalWidth,
-                     jint physicalHeight,
-                     jint width,
-                     jint height,
-                     jfloat dipScale,
-                     jint rotationDegrees,
-                     jint bitsPerPixel,
-                     jint bitsPerComponent);
-  void RemoveDisplay(JNIEnv* env,
-                     const base::android::JavaParamRef<jobject>& jobject,
-                     jint sdkDisplayId);
-  void SetPrimaryDisplayId(JNIEnv* env,
-                           const base::android::JavaParamRef<jobject>& jobject,
-                           jint sdkDisplayId);
-
- private:
-  friend void SetScreenAndroid();
-  DisplayAndroidManager();
-
-  int primary_display_id_ = 0;
-
-  DISALLOW_COPY_AND_ASSIGN(DisplayAndroidManager);
-};
-
-}  // namespace ui
-
-#endif  // UI_ANDROID_DISPLAY_ANDROID_MANAGER_H_