Refactor SynchronousCompositor out of SynchronousCompositorOutputSurface.

content/renderer/android/synchronous_compositor_impl.h

+// Copyright 2013 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_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_IMPL_H_
+#define CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_IMPL_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "cc/input/layer_scroll_offset_delegate.h"
+#include "content/public/renderer/android/synchronous_compositor.h"
+#include "content/renderer/android/synchronous_compositor_output_surface.h"
+
+namespace cc {
+class InputHandler;
+class OutputSurface;
+}
+
+namespace content {
+
+// The purpose of this class is to act as the intermediary between the various
+// components that make up the 'synchronous compositor mode' implementation and
+// expose their functionality via the SynchronousCompositor interface.
+// This class is created on the main thread but most of the APIs are called
+// from the Compositor thread.
+class SynchronousCompositorImpl
+    : public SynchronousCompositor,
+      public SynchronousCompositorOutputSurfaceDelegate {
+ public:
+  explicit SynchronousCompositorImpl(int32 routing_id);
+  virtual ~SynchronousCompositorImpl();
+
+  scoped_ptr<cc::OutputSurface> CreateOutputSurface();
+
+  // SynchronousCompositor
+  virtual bool IsHwReady() OVERRIDE;
+  virtual void SetClient(SynchronousCompositorClient* compositor_client)
+      OVERRIDE;
+  virtual bool DemandDrawSw(SkCanvas* canvas) OVERRIDE;
+  virtual bool DemandDrawHw(
+      gfx::Size view_size,
+      const gfx::Transform& transform,
+      gfx::Rect clip) OVERRIDE;
+
+  // SynchronousCompositorOutputSurfaceDelegate
+  virtual void SetContinuousInvalidate(bool enable) OVERRIDE;
+  virtual void DidCreateSynchronousCompositor() OVERRIDE;
+  virtual void DidDestroyCompositor() OVERRIDE;
+
+ private:
+  bool CalledOnValidThread() const;
+
+  int routing_id_;
+  SynchronousCompositorClient* compositor_client_;
+  SynchronousCompositorOutputSurface* output_surface_;
+
+  DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_IMPL_H_