Revert of Changes to enable HTML5 autoplay for voice search.

chrome/android/java/src/org/chromium/chrome/browser/VoiceSearchTabHelper.java

Index: chrome/android/java/src/org/chromium/chrome/browser/VoiceSearchTabHelper.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/VoiceSearchTabHelper.java b/chrome/android/java/src/org/chromium/chrome/browser/VoiceSearchTabHelper.java
deleted file mode 100644
index e12a92f43c5657099664f67f9f86f56f9cdf901e..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/VoiceSearchTabHelper.java
+++ /dev/null
@@ -1,35 +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.chrome.browser;
-
-import org.chromium.content.browser.ContentViewCore;
-import org.chromium.content.browser.WebContents;
-import org.chromium.content.browser.WebContentsObserverAndroid;
-
-/**
- * Tab helper to toggle media autoplay for voice URL searches.
- */
-public class VoiceSearchTabHelper extends WebContentsObserverAndroid {
-    private static final String TAG = "VoiceSearchTabHelper";
-    private long mNativeVoiceSearchTabHelper;
-    private WebContents mWebContents;
-
-    /**
-     * Create an instance of VoiceSearchTabHelper.
-     *
-     * @param contentViewCore ContentViewCore to update media autoplay status.
-     */
-    public VoiceSearchTabHelper(ContentViewCore contentViewCore) {
-        super(contentViewCore);
-        mWebContents = contentViewCore.getWebContents();
-    }
-
-    @Override
-    public void navigationEntryCommitted() {
-        nativeUpdateAutoplayStatus(mWebContents);
-    }
-
-    private native void nativeUpdateAutoplayStatus(WebContents webContents);
-}