Initial commit of the blimp/ folder and target

blimp/client/android/compositor/blimp_compositor.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_ANDROID_COMPOSITOR_BLIMP_COMPOSITOR_H_
+#define BLIMP_CLIENT_ANDROID_COMPOSITOR_BLIMP_COMPOSITOR_H_
+
+#include "base/android/jni_android.h"
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "cc/trees/layer_tree_host_client.h"
+#include "cc/trees/layer_tree_host_single_thread_client.h"
+#include "cc/trees/layer_tree_settings.h"
+#include "ui/gfx/geometry/size.h"
+
+struct ANativeWindow;
+
+namespace base {
+class SingleThreadTaskRunner;
+class Thread;
+}
+
+namespace cc {
+class LayerTreeHost;
+}
+
+namespace blimp {
+
+class BlimpCompositor : public cc::LayerTreeHostClient,

[nyquist, 2015/08/19 07:48:06]

Nit: A little class comment might be helpful here. What are the
responsibilities?

[David Trainor- moved to gerrit, 2015/08/21 00:49:46]

Done.

+                        public cc::LayerTreeHostSingleThreadClient {
+ public:
+  static scoped_ptr<BlimpCompositor> Create(const gfx::Size& physical_size,
+                                            const gfx::Size& display_size,
+                                            float device_scale_factor);
+
+  ~BlimpCompositor() override;
+
+  void SetSurface(JNIEnv* env, jobject jsurface);

[nyquist, 2015/08/19 07:48:06]

Like you mentioned yourself, it'd be great to have this class as the
cross-platform parts of the code, so maybe extract things?

[David Trainor- moved to gerrit, 2015/08/21 00:49:46]

Done.

+  void SetVisible(bool visible);
+  void SetSize(const gfx::Size& size);
+
+  // LayerTreeHostClient Implementation ----------------------------------------
+  void WillBeginMainFrame() override {}
+  void DidBeginMainFrame() override {}
+  void BeginMainFrame(const cc::BeginFrameArgs& args) override {}
+  void BeginMainFrameNotExpectedSoon() override {}
+  void Layout() override;
+  void ApplyViewportDeltas(const gfx::Vector2dF& inner_delta,
+                           const gfx::Vector2dF& outer_delta,
+                           const gfx::Vector2dF& elastic_overscroll_delta,
+                           float page_scale,
+                           float top_controls_delta) override {}
+  void RequestNewOutputSurface() override;
+  void DidInitializeOutputSurface() override;
+  void DidFailToInitializeOutputSurface() override;
+  void WillCommit() override {}
+  void DidCommit() override;
+  void DidCommitAndDrawFrame() override {}
+  void DidCompleteSwapBuffers() override;
+  void DidCompletePageScaleAnimation() override {}
+  void RecordFrameTimingEvents(
+      scoped_ptr<cc::FrameTimingTracker::CompositeTimingSet> composite_events,
+      scoped_ptr<cc::FrameTimingTracker::MainFrameTimingSet> main_frame_events)
+      override {}
+
+  // LayerTreeHostSingleThreadClient Implementation ----------------------------
+  void ScheduleComposite() override;
+  void ScheduleAnimation() override;
+  void DidPostSwapBuffers() override;
+  void DidAbortSwapBuffers() override;
+
+ protected:
+  BlimpCompositor(const gfx::Size& physical_size,
+                  const gfx::Size& display_size,
+                  float device_scale_factor);
+
+ private:
+  scoped_refptr<base::SingleThreadTaskRunner> GetCompositorTaskRunner();
+
+  gfx::Size viewport_size_;
+  float device_scale_factor_;
+
+  cc::LayerTreeSettings settings_;
+
+  ANativeWindow* window_;
+  scoped_ptr<cc::LayerTreeHost> host_;
+  scoped_ptr<base::Thread> compositor_thread_;
+
+  base::WeakPtrFactory<BlimpCompositor> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(BlimpCompositor);
+};
+
+}  // namespace blimp
+
+#endif  // BLIMP_CLIENT_ANDROID_COMPOSITOR_BLIMP_COMPOSITOR_H_