Split SurfaceFactoryClient Into Four Interfaces

cc/surfaces/surface_aggregator_client.h

Index: cc/surfaces/surface_aggregator_client.h
diff --git a/cc/surfaces/surface_aggregator_client.h b/cc/surfaces/surface_aggregator_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..26804dc1917d3231bff3ccb5c73be418195c38a6
--- /dev/null
+++ b/cc/surfaces/surface_aggregator_client.h
@@ -0,0 +1,23 @@
+// 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 CC_SURFACES_SURFACE_AGGREGATOR_CLIENT_H_
+#define CC_SURFACES_SURFACE_AGGREGATOR_CLIENT_H_
+
+#include "cc/surfaces/local_surface_id.h"
+#include "cc/surfaces/surfaces_export.h"
+#include "ui/gfx/geometry/rect.h"
+
+namespace cc {
+
+class CC_SURFACES_EXPORT SurfaceAggregatorClient {
+ public:
+  virtual ~SurfaceAggregatorClient() {}
+
+  virtual void WillDrawSurface(const LocalSurfaceId& local_surface_id,

[Fady Samuel, 2017/04/18 20:13:51]

Describe when this is called.

[Alex Z., 2017/04/18 20:24:55]

Done.

+                               const gfx::Rect& damage_rect) = 0;
+};
+
+}  // namespace cc
+
+#endif  // CC_SURFACES_SURFACE_AGGREGATOR_CLIENT_H_