Revert of Move content/browser/power_save_blocker to //device/power_save_blocker

device/power_save_blocker/android/java/src/org/chromium/device/power_save_blocker/PowerSaveBlocker.java

Index: device/power_save_blocker/android/java/src/org/chromium/device/power_save_blocker/PowerSaveBlocker.java
diff --git a/device/power_save_blocker/android/java/src/org/chromium/device/power_save_blocker/PowerSaveBlocker.java b/device/power_save_blocker/android/java/src/org/chromium/device/power_save_blocker/PowerSaveBlocker.java
deleted file mode 100644
index 3638d98071e6e51afe80efc1da5ab0e9fa2f7028..0000000000000000000000000000000000000000
--- a/device/power_save_blocker/android/java/src/org/chromium/device/power_save_blocker/PowerSaveBlocker.java
+++ /dev/null
@@ -1,46 +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.
-
-package org.chromium.device.power_save_blocker;
-
-import android.view.View;
-
-import org.chromium.base.annotations.CalledByNative;
-import org.chromium.base.annotations.JNINamespace;
-import org.chromium.ui.base.ViewAndroidDelegate;
-
-import java.lang.ref.WeakReference;
-
-@JNINamespace("device")
-class PowerSaveBlocker {
-    // WeakReference to prevent leaks in Android WebView.
-    private WeakReference<View> mKeepScreenOnView;
-
-    @CalledByNative
-    private static PowerSaveBlocker create() {
-        return new PowerSaveBlocker();
-    }
-
-    private PowerSaveBlocker() {}
-
-    @CalledByNative
-    private void applyBlock(ViewAndroidDelegate delegate) {
-        assert mKeepScreenOnView == null;
-        View anchorView = delegate.acquireAnchorView();
-        mKeepScreenOnView = new WeakReference<>(anchorView);
-        delegate.setAnchorViewPosition(anchorView, 0, 0, 0, 0);
-        anchorView.setKeepScreenOn(true);
-    }
-
-    @CalledByNative
-    private void removeBlock(ViewAndroidDelegate delegate) {
-        assert mKeepScreenOnView != null;
-        View anchorView = mKeepScreenOnView.get();
-        mKeepScreenOnView = null;
-        if (anchorView == null) return;
-
-        anchorView.setKeepScreenOn(false);
-        delegate.releaseAnchorView(anchorView);
-    }
-}