DialogSurfaceManager implementation.

media/base/android/dialog_surface.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.
+
+#ifndef MEDIA_BASE_ANDROID_DIALOG_SURFACE_H_
+#define MEDIA_BASE_ANDROID_DIALOG_SURFACE_H_
+
+#include <jni.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include <set>
+#include <string>
+
+#include "base/android/scoped_java_ref.h"
+#include "base/callback.h"
+#include "base/macros.h"
+#include "base/task_runner.h"
+#include "base/threading/thread_checker.h"
+#include "base/time/time.h"
+#include "media/base/media_export.h"
+#include "ui/gfx/geometry/point.h"
+#include "ui/gfx/geometry/size.h"
+#include "ui/gl/android/scoped_java_surface.h"
+
+namespace base {
+class WaitableEvent;

[watk, 2016/07/26 21:34:30]

unused

[liberato (no reviews please), 2016/07/26 22:49:16]

Done.

+}
+
+namespace media {
+
+class DialogSurfaceCallback;
+class DialogSurfaceManager;
+
+// This class implements the C++ wrapper around a java DialogSurface.
+// All callbacks happen on the thread that it's constructed on.
+class MEDIA_EXPORT DialogSurface {
+ public:
+  // These must match DialogSurface.java
+  enum CallbackOp { SURFACE_CREATED = 0, SURFACE_DESTROYED = 1 };
+
+  // Callback type for finding out about the status of the surface.  While we
+  // don't use this directly, it lets us keep DialogSurfaceCallback as an
+  // implementation detail.
+  using Callback = base::Callback<void(CallbackOp)>;
+
+  // Configuration for the surface.
+  struct Config {
+    gfx::Point position;
+    gfx::Size size;
+    // This may also include pixel format, is_secure, etc.
+  };
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_ANDROID_DIALOG_SURFACE_H_