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

media/capture/video/video_capture_buffer_pool_impl.cc

Index: media/capture/video/video_capture_buffer_pool_impl.cc
diff --git a/media/capture/video/video_capture_buffer_pool_impl.cc b/media/capture/video/video_capture_buffer_pool_impl.cc
index 6c8dcff3accb209c11fff0b53765dae4b387e268..d64709e5983eadc2288684b8a933234a7add7fe6 100644
--- a/media/capture/video/video_capture_buffer_pool_impl.cc
+++ b/media/capture/video/video_capture_buffer_pool_impl.cc
@@ -30,21 +30,16 @@ 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>