Initial commit of the blimp/ folder and target

blimp/client/compositor/test/dummy_layer_driver.h

+// Copyright 2015 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 BLIMP_CLIENT_COMPOSITOR_TEST_DUMMY_LAYER_DRIVER_H_
+#define BLIMP_CLIENT_COMPOSITOR_TEST_DUMMY_LAYER_DRIVER_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+
+namespace cc {
+class Layer;
+}
+
+namespace blimp {
+
+// A test class that drives changes to a layer every 16ms.  This can be used to
+// make sure the compositor is rendering layers properly.  In this case, colors
+// are constantly changed over time.
+class DummyLayerDriver {
+ public:
+  DummyLayerDriver();
+  virtual ~DummyLayerDriver();
+
+  // Adds a cc::SolidColorLayer to |layer| and animates it's color until the
+  // layer is detached from it's cc::LayerTreeHost.
+  void SetParentLayer(scoped_refptr<cc::Layer> layer);
+
+ private:
+  void StepAnimation();
+
+  scoped_refptr<cc::Layer> layer_;
+  bool animation_running_;
+
+  base::WeakPtrFactory<DummyLayerDriver> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(DummyLayerDriver);
+};
+
+}  // namespace blimp
+
+#endif  // BLIMP_CLIENT_COMPOSITOR_TEST_DUMMY_LAYER_DRIVER_H_