cc:: Add RenderingStatsInstrumentation to manage collection of RenderingStats

cc/debug/rendering_stats_instrumentation.cc

Index: cc/debug/rendering_stats_instrumentation.cc
diff --git a/cc/debug/rendering_stats_instrumentation.cc b/cc/debug/rendering_stats_instrumentation.cc
new file mode 100644
index 0000000000000000000000000000000000000000..587a7c9934d568de162a7dce77ee6ab94e77801f
--- /dev/null
+++ b/cc/debug/rendering_stats_instrumentation.cc
@@ -0,0 +1,162 @@
+// 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.
+
+#include "cc/debug/rendering_stats_instrumentation.h"
+
+namespace cc {
+
+// static
+scoped_ptr<RenderingStatsInstrumentation>
+    RenderingStatsInstrumentation::Create() {
+  return make_scoped_ptr(new RenderingStatsInstrumentation());
+}
+
+RenderingStatsInstrumentation::RenderingStatsInstrumentation()
+    : record_rendering_stats_(false) {
+}
+
+RenderingStats RenderingStatsInstrumentation::GetRenderingStats() {
+  base::AutoLock scoped_lock(lock_);
+  return rendering_stats_;
+}
+
+base::TimeTicks RenderingStatsInstrumentation::StartRecording() const {
+  if (record_rendering_stats_)
+    return base::TimeTicks::HighResNow();
+  return base::TimeTicks();
+}
+
+base::TimeDelta RenderingStatsInstrumentation::EndRecording(
+    base::TimeTicks start_time) const {
+  if (!start_time.is_null())
+    return base::TimeTicks::HighResNow() - start_time;
+  return base::TimeDelta();
+}
+
+void RenderingStatsInstrumentation::AddStats(const RenderingStats& other) {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.Add(other);
+}
+
+void RenderingStatsInstrumentation::IncrementAnimationFrameCount() {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.numAnimationFrames++;
+}
+
+void RenderingStatsInstrumentation::SetScreenFrameCount(int64 count) {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.numFramesSentToScreen = count;
+}
+
+void RenderingStatsInstrumentation::SetDroppedFrameCount(int64 count) {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.droppedFrameCount = count;
+}
+
+void RenderingStatsInstrumentation::AddCommit(base::TimeDelta duration) {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.totalCommitTime += duration;
+  rendering_stats_.totalCommitCount++;
+}
+
+void RenderingStatsInstrumentation::AddPaint(base::TimeDelta duration,
+                                             int64 pixels) {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.totalPaintTime += duration;
+  rendering_stats_.totalPixelsPainted += pixels;
+}
+
+void RenderingStatsInstrumentation::AddRaster(base::TimeDelta duration,
+                                              int64 pixels,
+                                              bool is_in_pending_tree_now_bin) {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.totalRasterizeTime += duration;
+  rendering_stats_.totalPixelsRasterized += pixels;
+
+  if (is_in_pending_tree_now_bin)
+    rendering_stats_.totalRasterizeTimeForNowBinsOnPendingTree += duration;
+}
+
+void RenderingStatsInstrumentation::IncrementImplThreadScrolls() {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.numImplThreadScrolls++;
+}
+
+void RenderingStatsInstrumentation::IncrementMainThreadScrolls() {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.numMainThreadScrolls++;
+}
+
+void RenderingStatsInstrumentation::AddLayersDrawn(int64 amount) {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.numLayersDrawn += amount;
+}
+
+void RenderingStatsInstrumentation::AddMissingTiles(int64 amount) {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.numMissingTiles += amount;
+}
+
+void RenderingStatsInstrumentation::AddDeferredImageDecode(
+    base::TimeDelta duration) {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.totalDeferredImageDecodeTime += duration;
+  rendering_stats_.totalDeferredImageDecodeCount++;
+}
+
+void RenderingStatsInstrumentation::AddImageGathering(
+    base::TimeDelta duration) {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.totalImageGatheringTime += duration;
+  rendering_stats_.totalImageGatheringCount++;
+}
+
+void RenderingStatsInstrumentation::IncrementDeferredImageCacheHitCount() {
+  if (!record_rendering_stats_)
+    return;
+
+  base::AutoLock scoped_lock(lock_);
+  rendering_stats_.totalDeferredImageCacheHitCount++;
+}
+
+}  // namespace cc