Revert "Delete CC."

cc/output/output_surface_client.h

Index: cc/output/output_surface_client.h
diff --git a/cc/output/output_surface_client.h b/cc/output/output_surface_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..60d9a38058ae6dda17cfd586d4446b8303b81850
--- /dev/null
+++ b/cc/output/output_surface_client.h
@@ -0,0 +1,56 @@
+// Copyright 2012 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_OUTPUT_OUTPUT_SURFACE_CLIENT_H_
+#define CC_OUTPUT_OUTPUT_SURFACE_CLIENT_H_
+
+#include "base/callback.h"
+#include "base/memory/ref_counted.h"
+#include "base/time/time.h"
+#include "cc/output/context_provider.h"
+#include "ui/gfx/geometry/rect.h"
+
+namespace gfx {
+class Transform;
+}
+
+namespace cc {
+
+class CompositorFrameAck;
+
+class OutputSurfaceClient {
+ public:
+  // Called to synchronously re-initialize using the Context3D. Upon returning
+  // the compositor should be able to draw using GL what was previously
+  // committed.
+  virtual void DeferredInitialize() = 0;
+  // Must call OutputSurface::ReleaseContextProvider inside this call.
+  virtual void ReleaseGL() = 0;
+  virtual void CommitVSyncParameters(base::TimeTicks timebase,
+                                     base::TimeDelta interval) = 0;
+  virtual void SetNeedsRedrawRect(const gfx::Rect& damage_rect) = 0;
+  virtual void DidSwapBuffers() = 0;
+  virtual void DidSwapBuffersComplete() = 0;
+  virtual void ReclaimResources(const CompositorFrameAck* ack) = 0;
+  virtual void DidLoseOutputSurface() = 0;
+  virtual void SetExternalDrawConstraints(
+      const gfx::Transform& transform,
+      const gfx::Rect& viewport,
+      const gfx::Rect& clip,
+      const gfx::Rect& viewport_rect_for_tile_priority,
+      const gfx::Transform& transform_for_tile_priority,
+      bool resourceless_software_draw) = 0;
+  // If set, |callback| will be called subsequent to each new tree activation,
+  // regardless of the compositor visibility or damage. |callback| must remain
+  // valid for the lifetime of the OutputSurfaceClient or until unregisted --
+  // use SetTreeActivationCallback(base::Closure()) to unregister it.
+  virtual void SetTreeActivationCallback(const base::Closure& callback) = 0;
+
+ protected:
+  virtual ~OutputSurfaceClient() {}
+};
+
+}  // namespace cc
+
+#endif  // CC_OUTPUT_OUTPUT_SURFACE_CLIENT_H_