1 files changed, 51 insertions, 0 deletions
diff --git a/chromium/components/arc/video_accelerator/protected_buffer_manager_proxy.cc b/chromium/components/arc/video_accelerator/protected_buffer_manager_proxy.cc
new file mode 100644
index 00000000000..878eefa3ec3
--- /dev/null
+++ b/chromium/components/arc/video_accelerator/protected_buffer_manager_proxy.cc
@@ -0,0 +1,51 @@
+// Copyright 2017 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 "components/arc/video_accelerator/protected_buffer_manager_proxy.h"
+
+#include "components/arc/video_accelerator/protected_buffer_manager.h"
+#include "mojo/public/cpp/system/platform_handle.h"
+
+#define VLOGF(level) VLOG(level) << __func__ << "(): "
+
+namespace arc {
+
+GpuArcProtectedBufferManagerProxy::GpuArcProtectedBufferManagerProxy(
+    arc::ProtectedBufferManager* protected_buffer_manager)
+    : protected_buffer_manager_(protected_buffer_manager) {
+  DCHECK(protected_buffer_manager_);
+}
+
+base::ScopedFD GpuArcProtectedBufferManagerProxy::UnwrapFdFromMojoHandle(
+    mojo::ScopedHandle handle) {
+  base::PlatformFile platform_file;
+  MojoResult mojo_result =
+      mojo::UnwrapPlatformFile(std::move(handle), &platform_file);
+  if (mojo_result != MOJO_RESULT_OK) {
+    VLOGF(1) << "UnwrapPlatformFile failed: " << mojo_result;
+    return base::ScopedFD();
+  }
+
+  return base::ScopedFD(platform_file);
+}
+
+mojo::ScopedHandle GpuArcProtectedBufferManagerProxy::WrapFdInMojoHandle(
+    base::ScopedFD fd) {
+  return mojo::WrapPlatformFile(fd.release());
+}
+
+void GpuArcProtectedBufferManagerProxy::GetProtectedSharedMemoryFromHandle(
+    mojo::ScopedHandle dummy_handle,
+    GetProtectedSharedMemoryFromHandleCallback callback) {
+  base::ScopedFD unwrapped_fd = UnwrapFdFromMojoHandle(std::move(dummy_handle));
+
+  base::ScopedFD shmem_fd(
+      protected_buffer_manager_
+          ->GetProtectedSharedMemoryHandleFor(std::move(unwrapped_fd))
+          .Release());
+
+  std::move(callback).Run(WrapFdInMojoHandle(std::move(shmem_fd)));
+}
+
+}  // namespace arc