Revert "Allow MessageFilters to restrict listening to specific message classes"

content/browser/vibration/vibration_message_filter.cc

 // 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.
 
 #include "content/browser/vibration/vibration_message_filter.h"
 
 #include <algorithm>
 
 #include "base/numerics/safe_conversions.h"
 #include "content/common/view_messages.h"
 #include "content/port/browser/vibration_provider.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/common/content_client.h"
 #include "third_party/WebKit/public/platform/WebVibration.h"
 
 namespace content {
 
 // Minimum duration of a vibration is 1 millisecond.
 const int64 kMinimumVibrationDurationMs = 1;
 
-VibrationMessageFilter::VibrationMessageFilter()
-    : BrowserMessageFilter(ViewMsgStart) {
+VibrationMessageFilter::VibrationMessageFilter() {
   provider_.reset(GetContentClient()->browser()->OverrideVibrationProvider());
   if (!provider_.get())
     provider_.reset(CreateProvider());
 }
 
 VibrationMessageFilter::~VibrationMessageFilter() {
 }
 
 bool VibrationMessageFilter::OnMessageReceived(
     const IPC::Message& message,
@@ skipping 28 matching lines @@
   provider_->CancelVibration();
 }
 
 #if !defined(OS_ANDROID)
 // static
 VibrationProvider* VibrationMessageFilter::CreateProvider() {
   return NULL;
 }
 #endif
 }  // namespace content