Fix incorrect comparison with bitmask.

content/browser/web_contents/web_contents_impl.cc

 // Copyright (c) 2012 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/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 979 matching lines @@
 }
 
 bool WebContentsImpl::IsBeingDestroyed() const {
   return is_being_destroyed_;
 }
 
 void WebContentsImpl::NotifyNavigationStateChanged(
     InvalidateTypes changed_flags) {
   // Create and release the audio power save blocker depending on whether the
   // tab is actively producing audio or not.
-  if (changed_flags == INVALIDATE_TYPE_TAB &&
+  if ((changed_flags & INVALIDATE_TYPE_TAB) &&
       AudioStreamMonitor::monitoring_available()) {
     if (WasRecentlyAudible()) {
       if (!audio_power_save_blocker_)
         CreateAudioPowerSaveBlocker();
     } else {
       audio_power_save_blocker_.reset();
     }
   }
 
   if (delegate_)
@@ skipping 3370 matching lines @@
   node->render_manager()->ResumeResponseDeferredAtStart();
 }
 
 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
   force_disable_overscroll_content_ = force_disable;
   if (view_)
     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
 }
 
 }  // namespace content