import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

gfx/ipc/InProcessCompositorSession.h

@@ -0,0 +1,49 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=99: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef _include_mozilla_gfx_ipc_InProcessCompositorSession_h_
+#define _include_mozilla_gfx_ipc_InProcessCompositorSession_h_
+
+#include "CompositorSession.h"
+#include "mozilla/gfx/Point.h"
+#include "Units.h"
+
+namespace mozilla {
+namespace layers {
+
+// A CompositorSession where both the child and parent CompositorBridge reside
+// in the same process.
+class InProcessCompositorSession final : public CompositorSession
+{
+public:
+  static RefPtr<InProcessCompositorSession> Create(
+    nsIWidget* aWidget,
+    LayerManager* aLayerManager,
+    const uint64_t& aRootLayerTreeId,
+    CSSToLayoutDeviceScale aScale,
+    bool aUseAPZ,
+    bool aUseExternalSurfaceSize,
+    const gfx::IntSize& aSurfaceSize);
+
+  CompositorBridgeParent* GetInProcessBridge() const override;
+  void SetContentController(GeckoContentController* aController) override;
+  RefPtr<IAPZCTreeManager> GetAPZCTreeManager() const override;
+  bool Reset(const nsTArray<LayersBackend>& aBackendHints, TextureFactoryIdentifier* aOutIdentifier) override;
+  void Shutdown() override;
+
+private:
+  InProcessCompositorSession(widget::CompositorWidget* aWidget,
+                             CompositorBridgeChild* aChild,
+                             CompositorBridgeParent* aParent);
+
+private:
+  RefPtr<CompositorBridgeParent> mCompositorBridgeParent;
+  RefPtr<CompositorWidget> mCompositorWidget;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif // _include_mozilla_gfx_ipc_InProcessCompositorSession_h_