DialogSurfaceManager implementation.

media/base/android/android_overlay_provider_proxy.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_ANDROID_OVERLAY_PROVIDER_PROXY_H_
+#define MEDIA_BASE_ANDROID_ANDROID_OVERLAY_PROVIDER_PROXY_H_
+
+#include <jni.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include <set>
+#include <string>
+
+#include "base/android/scoped_java_ref.h"
+#include "base/lazy_instance.h"
+#include "base/macros.h"
+#include "base/process/process_handle.h"
+#include "base/time/time.h"
+#include "media/base/android/android_overlay_proxy.h"
+#include "media/base/media_export.h"
+#include "ui/gfx/geometry/point.h"
+#include "ui/gfx/geometry/size.h"
+
+namespace media {
+
+// This class implements the C++ wrapper around the java
+// AndroidOverlayProviderProxy.
+// Typical usage is:
+//
+// callback = something that is a AndroidOverlayProvider::Callback;
+// unique_ptr<AndroidOverlay> surface =
+//      AndroidOverlayProviderProxy::GetPointer()->CreateSurface(callback);
+// (wait for callback)
+// surface->GetSurface()
+// if (i_want_to_change_the_layout_)
+//   surface->ScheduleLayout(new_position_and_size);
+class MEDIA_EXPORT AndroidOverlayProviderProxy {
+ public:
+  // Return singleton manager instance.
+  static AndroidOverlayProviderProxy* Get();
+
+  using Config = AndroidOverlayProxy::Config;
+
+  // Create an overlay for renderer frame owned by renderer |pid|, and id
+  // |render_frame_id|.  May return null.
+  std::unique_ptr<AndroidOverlayProxy> CreateOverlay(
+      base::ProcessHandle pid,
+      int render_frame_id,
+      const Config& config,
+      const AndroidOverlayProxy::Callback& cb);
+
+ private:
+  AndroidOverlayProviderProxy();
+  ~AndroidOverlayProviderProxy();
+
+  friend struct base::DefaultLazyInstanceTraits<AndroidOverlayProviderProxy>;
+
+  // Java AndroidOverlayProviderProxy instance.
+  base::android::ScopedJavaGlobalRef<jobject> j_wrapped_provider_;
+
+  DISALLOW_COPY_AND_ASSIGN(AndroidOverlayProviderProxy);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_ANDROID_ANDROID_OVERLAY_PROVIDER_PROXY_H_