Use MojoCompositorFrameSink in RendererCompositorFrameSink

content/test/fake_renderer_compositor_frame_sink.h

Index: content/test/fake_renderer_compositor_frame_sink.h
diff --git a/content/test/fake_renderer_compositor_frame_sink.h b/content/test/fake_renderer_compositor_frame_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..5bcdfa3d11da88ae20dd5ca3d428fe3766bbc072
--- /dev/null
+++ b/content/test/fake_renderer_compositor_frame_sink.h
@@ -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.
+
+#ifndef CONTENT_TEST_FAKE_RENDERER_COMPOSITOR_FRAME_SINK_H_
+#define CONTENT_TEST_FAKE_RENDERER_COMPOSITOR_FRAME_SINK_H_
+
+#include "cc/ipc/mojo_compositor_frame_sink.mojom.h"
+#include "mojo/public/cpp/bindings/binding.h"
+
+namespace content {
+
+// This class is given to RenderWidgetHost/RenderWidgetHostView unit tests
+// instead of RendererCompositorFrameSink.
+class FakeRendererCompositorFrameSink
+    : public cc::mojom::MojoCompositorFrameSinkClient {
+ public:
+  FakeRendererCompositorFrameSink(
+      cc::mojom::MojoCompositorFrameSinkPtr sink,
+      cc::mojom::MojoCompositorFrameSinkClientRequest request);
+  ~FakeRendererCompositorFrameSink() override;
+
+  bool did_receive_ack() { return did_receive_ack_; }
+  cc::ReturnedResourceArray& last_reclaimed_resources() {
+    return last_reclaimed_resources_;
+  }
+
+  // cc::mojom::MojoCompositorFrameSinkClient implementation.
+  void DidReceiveCompositorFrameAck(
+      const cc::ReturnedResourceArray& resources) override;
+  void OnBeginFrame(const cc::BeginFrameArgs& args) override {}
+  void ReclaimResources(const cc::ReturnedResourceArray& resources) override;
+
+  // Resets test data.
+  void Reset();
+
+  // Runs all queued messages.
+  void Flush();
+
+ private:
+  mojo::Binding<cc::mojom::MojoCompositorFrameSinkClient> binding_;
+  cc::mojom::MojoCompositorFrameSinkPtr sink_;
+  bool did_receive_ack_ = false;
+  cc::ReturnedResourceArray last_reclaimed_resources_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeRendererCompositorFrameSink);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_TEST_FAKE_RENDERER_COMPOSITOR_FRAME_SINK_H_