Revert "Delete CC."

cc/debug/frame_viewer_instrumentation.h

+// Copyright 2014 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_DEBUG_FRAME_VIEWER_INSTRUMENTATION_H_
+#define CC_DEBUG_FRAME_VIEWER_INSTRUMENTATION_H_
+
+#include "base/trace_event/trace_event.h"
+#include "cc/resources/tile.h"
+
+namespace cc {
+namespace frame_viewer_instrumentation {
+
+extern const char kCategoryLayerTree[];
+
+class ScopedAnalyzeTask {
+ public:
+  ScopedAnalyzeTask(const void* tile_id,
+                    TileResolution tile_resolution,
+                    int source_frame_number,
+                    int layer_id);
+  ~ScopedAnalyzeTask();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ScopedAnalyzeTask);
+};
+
+class ScopedRasterTask {
+ public:
+  ScopedRasterTask(const void* tile_id,
+                   TileResolution tile_resolution,
+                   int source_frame_number,
+                   int layer_id);
+  ~ScopedRasterTask();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ScopedRasterTask);
+};
+
+bool IsTracingLayerTreeSnapshots();
+
+}  // namespace frame_viewer_instrumentation
+}  // namespace cc
+
+#endif  // CC_DEBUG_FRAME_VIEWER_INSTRUMENTATION_H_