VideoCapture: more migration IPC-->mojo, part 6

media/capture/video/video_capture_buffer_pool_impl.cc

 // Copyright (c) 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 "media/capture/video/video_capture_buffer_pool_impl.h"
 
 #include <memory>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
@@ skipping 12 matching lines @@
       next_buffer_id_(0),
       last_relinquished_buffer_id_(kInvalidId),
       buffer_tracker_factory_(std::move(buffer_tracker_factory)) {
   DCHECK_GT(count, 0);
 }
 
 VideoCaptureBufferPoolImpl::~VideoCaptureBufferPoolImpl() {
   base::STLDeleteValues(&trackers_);
 }
 
-bool VideoCaptureBufferPoolImpl::ShareToProcess(
-    int buffer_id,
-    base::ProcessHandle process_handle,
-    base::SharedMemoryHandle* new_handle) {
+mojo::ScopedSharedBufferHandle VideoCaptureBufferPoolImpl::GetHandleForTransit(
+    int buffer_id) {
   base::AutoLock lock(lock_);
 
   VideoCaptureBufferTracker* tracker = GetTracker(buffer_id);
   if (!tracker) {
     NOTREACHED() << "Invalid buffer_id.";
-    return false;
+    return mojo::ScopedSharedBufferHandle();
   }
-  if (tracker->ShareToProcess(process_handle, new_handle))
-    return true;
-  DPLOG(ERROR) << "Error mapping memory";
-  return false;
+  return tracker->GetHandleForTransit();
 }
 
 std::unique_ptr<VideoCaptureBufferHandle>
 VideoCaptureBufferPoolImpl::GetBufferHandle(int buffer_id) {
   base::AutoLock lock(lock_);
 
   VideoCaptureBufferTracker* tracker = GetTracker(buffer_id);
   if (!tracker) {
     NOTREACHED() << "Invalid buffer_id.";
     return std::unique_ptr<VideoCaptureBufferHandle>();
@@ skipping 176 matching lines @@
   return buffer_id;
 }
 
 VideoCaptureBufferTracker* VideoCaptureBufferPoolImpl::GetTracker(
     int buffer_id) {
   TrackerMap::const_iterator it = trackers_.find(buffer_id);
   return (it == trackers_.end()) ? NULL : it->second;
 }
 
 }  // namespace media