replace NULL->nullptr in src/remoting.

remoting/host/cast_video_capturer_adapter.cc

 // Copyright 2014 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 "remoting/host/cast_video_capturer_adapter.h"
 
 #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h"
 
 namespace remoting {
 
@@ skipping 10 matching lines @@
   // Disable video adaptation since we don't intend to use it.
   set_enable_video_adapter(false);
 }
 
 CastVideoCapturerAdapter::~CastVideoCapturerAdapter() {
   DCHECK(!capture_timer_);
 }
 
 webrtc::SharedMemory* CastVideoCapturerAdapter::CreateSharedMemory(
     size_t size) {
-  return NULL;
+  return nullptr;
 }
 
 void CastVideoCapturerAdapter::OnCaptureCompleted(webrtc::DesktopFrame* frame) {
   scoped_ptr<webrtc::DesktopFrame> owned_frame(frame);
 
   // Drop the owned_frame if there were no changes.
   if (!owned_frame || owned_frame->updated_region().is_empty()) {
     owned_frame.reset();
     return;
   }
@@ skipping 114 matching lines @@
   }
   return true;
 }
 
 void CastVideoCapturerAdapter::Stop() {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK_NE(capture_state(), cricket::CS_STOPPED);
 
   capture_timer_.reset();
 
-  SetCaptureFormat(NULL);
+  SetCaptureFormat(nullptr);
   SetCaptureState(cricket::CS_STOPPED);
 
   VLOG(1) << "CastVideoCapturerAdapter stopped.";
 }
 
 
 bool CastVideoCapturerAdapter::IsRunning() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   return capture_timer_->IsRunning();
@@ skipping 15 matching lines @@
 void CastVideoCapturerAdapter::CaptureNextFrame() {
   // If we are paused, then don't capture.
   if (!IsRunning())
     return;
 
   desktop_capturer_->Capture(webrtc::DesktopRegion());
 }
 
 }  // namespace remoting