Revert "Delete CC."

cc/debug/rendering_stats.cc

Index: cc/debug/rendering_stats.cc
diff --git a/cc/debug/rendering_stats.cc b/cc/debug/rendering_stats.cc
new file mode 100644
index 0000000000000000000000000000000000000000..3a27c1d40f80ba9c9a4125335001c967ecb62ec2
--- /dev/null
+++ b/cc/debug/rendering_stats.cc
@@ -0,0 +1,89 @@
+// 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.
+
+#include "cc/debug/rendering_stats.h"
+
+namespace cc {
+
+RenderingStats::TimeDeltaList::TimeDeltaList() {
+}
+
+RenderingStats::TimeDeltaList::~TimeDeltaList() {
+}
+
+void RenderingStats::TimeDeltaList::Append(base::TimeDelta value) {
+  values.push_back(value);
+}
+
+void RenderingStats::TimeDeltaList::AddToTracedValue(
+    const char* name,
+    base::trace_event::TracedValue* list_value) const {
+  list_value->BeginArray(name);
+  for (const auto& value : values) {
+    list_value->AppendDouble(value.InMillisecondsF());
+  }
+  list_value->EndArray();
+}
+
+void RenderingStats::TimeDeltaList::Add(const TimeDeltaList& other) {
+  values.insert(values.end(), other.values.begin(), other.values.end());
+}
+
+base::TimeDelta RenderingStats::TimeDeltaList::GetLastTimeDelta() const {
+  return values.empty() ? base::TimeDelta() : values.back();
+}
+
+RenderingStats::RenderingStats()
+    : frame_count(0),
+      visible_content_area(0),
+      approximated_visible_content_area(0) {
+}
+
+RenderingStats::~RenderingStats() {
+}
+
+scoped_refptr<base::trace_event::ConvertableToTraceFormat>
+RenderingStats::AsTraceableData() const {
+  scoped_refptr<base::trace_event::TracedValue> record_data =
+      new base::trace_event::TracedValue();
+  record_data->SetInteger("frame_count", frame_count);
+  record_data->SetInteger("visible_content_area", visible_content_area);
+  record_data->SetInteger("approximated_visible_content_area",
+                          approximated_visible_content_area);
+  draw_duration.AddToTracedValue("draw_duration_ms", record_data.get());
+
+  draw_duration_estimate.AddToTracedValue("draw_duration_estimate_ms",
+                                          record_data.get());
+
+  begin_main_frame_to_commit_duration.AddToTracedValue(
+      "begin_main_frame_to_commit_duration_ms", record_data.get());
+
+  begin_main_frame_to_commit_duration_estimate.AddToTracedValue(
+      "begin_main_frame_to_commit_duration_estimate_ms", record_data.get());
+
+  commit_to_activate_duration.AddToTracedValue("commit_to_activate_duration_ms",
+                                               record_data.get());
+
+  commit_to_activate_duration_estimate.AddToTracedValue(
+      "commit_to_activate_duration_estimate_ms", record_data.get());
+  return record_data;
+}
+
+void RenderingStats::Add(const RenderingStats& other) {
+  frame_count += other.frame_count;
+  visible_content_area += other.visible_content_area;
+  approximated_visible_content_area += other.approximated_visible_content_area;
+
+  draw_duration.Add(other.draw_duration);
+  draw_duration_estimate.Add(other.draw_duration_estimate);
+  begin_main_frame_to_commit_duration.Add(
+      other.begin_main_frame_to_commit_duration);
+  begin_main_frame_to_commit_duration_estimate.Add(
+      other.begin_main_frame_to_commit_duration_estimate);
+  commit_to_activate_duration.Add(other.commit_to_activate_duration);
+  commit_to_activate_duration_estimate.Add(
+      other.commit_to_activate_duration_estimate);
+}
+
+}  // namespace cc