Add OnRemoved() in VideoCapture::EventHandler API

webkit/plugins/ppapi/ppb_video_capture_impl.cc

 // Copyright (c) 2011 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 "webkit/plugins/ppapi/ppb_video_capture_impl.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/logging.h"
@@ skipping 149 matching lines @@
                                     int error_code) {
   // Today, the media layer only sends "1" as an error.
   DCHECK(error_code == 1);
   // It either comes because some error was detected while starting (e.g. 2
   // conflicting "master" resolution), or because the browser failed to start
   // the capture.
   status_ = PP_VIDEO_CAPTURE_STATUS_STOPPED;
   ppp_videocapture_->OnError(pp_instance(), pp_resource(), PP_ERROR_FAILED);
 }
 
+void PPB_VideoCapture_Impl::OnRemoved(media::VideoCapture* capture) {
+  // TODO(vtl): add logic when this event handler is removed.
+}
+
 void PPB_VideoCapture_Impl::OnBufferReady(
     media::VideoCapture* capture,
     scoped_refptr<media::VideoCapture::VideoFrameBuffer> buffer) {
   DCHECK(buffer.get());
   for (uint32_t i = 0; i < buffers_.size(); ++i) {
     if (!buffers_[i].in_use) {
       // TODO(piman): it looks like stride isn't actually used/filled.
       DCHECK(buffer->stride == 0);
       size_t size = std::min(static_cast<size_t>(buffers_[i].buffer->size()),
           buffer->buffer_size);
@@ skipping 74 matching lines @@
     : in_use(false),
       data(NULL),
       buffer() {
 }
 
 PPB_VideoCapture_Impl::BufferInfo::~BufferInfo() {
 }
 
 }  // namespace ppapi
 }  // namespace webkit