cc: Switch RenderingStats collection in Layer::Update() to RenderingStatsInstrumentation

cc/resources/picture.cc

 // 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 "base/debug/trace_event.h"
-#include "cc/debug/rendering_stats.h"
+#include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/layers/content_layer_client.h"
 #include "cc/resources/picture.h"
 #include "skia/ext/analysis_canvas.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkData.h"
 #include "third_party/skia/include/core/SkDrawFilter.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "third_party/skia/include/utils/SkPictureUtils.h"
 #include "ui/gfx/rect_conversions.h"
 #include "ui/gfx/skia_util.h"
@@ skipping 55 matching lines @@
   for (int i = 0; i < num_threads; i++) {
     scoped_refptr<Picture> clone = make_scoped_refptr(
         new Picture(skia::AdoptRef(new SkPicture(clones[i])),
                     layer_rect_,
                     opaque_rect_));
     clones_.push_back(clone);
   }
 }
 
 void Picture::Record(ContentLayerClient* painter,
-                     RenderingStats* stats,
+                     RenderingStatsInstrumentation* stats_instrumentation,
                      const SkTileGridPicture::TileGridInfo& tile_grid_info) {
   TRACE_EVENT2("cc", "Picture::Record",
                "width", layer_rect_.width(), "height", layer_rect_.height());
 
   // Record() should only be called once.
   DCHECK(!picture_);
   DCHECK(!tile_grid_info.fTileInterval.isEmpty());
   picture_ = skia::AdoptRef(new SkTileGridPicture(
       layer_rect_.width(), layer_rect_.height(), tile_grid_info));
 
@@ skipping 11 matching lines @@
   paint.setAntiAlias(false);
   paint.setXfermodeMode(SkXfermode::kClear_Mode);
   SkRect layer_skrect = SkRect::MakeXYWH(layer_rect_.x(),
                                          layer_rect_.y(),
                                          layer_rect_.width(),
                                          layer_rect_.height());
   canvas->clipRect(layer_skrect);
   canvas->drawRect(layer_skrect, paint);
 
   gfx::RectF opaque_layer_rect;
-  base::TimeTicks begin_paint_time;
-  if (stats)
-    begin_paint_time = base::TimeTicks::Now();
+  base::TimeTicks start_time = stats_instrumentation->StartRecording();
+
   painter->PaintContents(canvas, layer_rect_, &opaque_layer_rect);
-  if (stats) {
-    stats->total_paint_time += base::TimeTicks::Now() - begin_paint_time;
-    stats->total_pixels_painted +=
-        layer_rect_.width() * layer_rect_.height();
-  }
+
+  base::TimeDelta duration = stats_instrumentation->EndRecording(start_time);
+  stats_instrumentation->AddPaint(duration,
+                                  layer_rect_.width() * layer_rect_.height());
 
   canvas->restore();
   picture_->endRecording();
 
   opaque_rect_ = gfx::ToEnclosedRect(opaque_layer_rect);
 }
 
 void Picture::Raster(
     SkCanvas* canvas,
     gfx::Rect content_rect,
@@ skipping 39 matching lines @@
     if (*refs && (*refs)->getURI() && !strncmp(
         (*refs)->getURI(), kLabelLazyDecoded, 4)) {
       pixel_ref_list.push_back(static_cast<skia::LazyPixelRef*>(*refs));
     }
     refs++;
   }
   pixel_refs->unref();
 }
 
 }  // namespace cc