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

mojo/public/cpp/system/platform_handle.h

 // Copyright 2016 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.
 
 // This file provides a C++ wrapping around the Mojo C API for platform handles,
 // replacing the prefix of "Mojo" with a "mojo" namespace.
 //
 // Please see "mojo/public/c/system/platform_handle.h" for complete
 // documentation of the API.
 
@@ skipping 44 matching lines @@
 ScopedHandle WrapPlatformFile(base::PlatformFile platform_file);
 
 // Unwraps a PlatformFile from a Mojo handle.
 MOJO_CPP_SYSTEM_EXPORT
 MojoResult UnwrapPlatformFile(ScopedHandle handle, base::PlatformFile* file);
 
 // Wraps a base::SharedMemoryHandle as a Mojo handle. Takes ownership of the
 // SharedMemoryHandle. Note that |read_only| is only an indicator of whether
 // |memory_handle| only supports read-only mapping. It does NOT have any
 // influence on the access control of the shared buffer object.
+MOJO_CPP_SYSTEM_EXPORT
 ScopedSharedBufferHandle WrapSharedMemoryHandle(
     const base::SharedMemoryHandle& memory_handle,
     size_t size,
     bool read_only);
 
 // Unwraps a base::SharedMemoryHandle from a Mojo handle. The caller assumes
 // responsibility for the lifetime of the SharedMemoryHandle.
 MOJO_CPP_SYSTEM_EXPORT MojoResult
 UnwrapSharedMemoryHandle(ScopedSharedBufferHandle handle,
                          base::SharedMemoryHandle* memory_handle,
                          size_t* size,
                          bool* read_only);
 
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_SYSTEM_PLATFORM_HANDLE_H_