Revert of Mark AwContentsClientFullScreenTest#testPowerSaveBlockerIsTransferredToFullscreen as flaky

android_webview/javatests/src/org/chromium/android_webview/test/AwContentsClientFullScreenTest.java

Index: android_webview/javatests/src/org/chromium/android_webview/test/AwContentsClientFullScreenTest.java
diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsClientFullScreenTest.java b/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsClientFullScreenTest.java
index ae59120b157932f923fa5dabbea44cbff65bb6a1..2243accf1033b20f7744bef5f94a37a54e3dcfd3 100644
--- a/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsClientFullScreenTest.java
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsClientFullScreenTest.java
@@ -5,7 +5,6 @@
 package org.chromium.android_webview.test;
 
 import android.os.Build;
-import android.test.FlakyTest;
 import android.test.suitebuilder.annotation.MediumTest;
 import android.view.KeyEvent;
 import android.view.View;
@@ -349,11 +348,8 @@
         assertWaitForKeepScreenOnActive(mTestContainerView, false);
     }
 
-    /*
-    @MediumTest
-    @Feature({"AndroidWebView"})
-    */
-    @FlakyTest
+    @MediumTest
+    @Feature({"AndroidWebView"})
     public void testPowerSaveBlockerIsTransferredToFullscreen()
             throws Throwable {
         assertFalse(DOMUtils.isFullscreen(getWebContentsOnUiThread()));