Add traces in compositor, views and skia

ui/gfx/compositor/layer.cc

 // Copyright (c) 2011 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 "ui/gfx/compositor/layer.h"
 
 #include <algorithm>
 
+#include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebContentLayer.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebExternalTextureLayer.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFloatPoint.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFloatRect.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSize.h"
 #include "ui/base/animation/animation.h"
 #if defined(USE_WEBKIT_COMPOSITOR)
 #include "ui/gfx/compositor/compositor_cc.h"
@@ skipping 278 matching lines @@
 #endif
 }
 
 void Layer::ScheduleDraw() {
   Compositor* compositor = GetCompositor();
   if (compositor)
     compositor->ScheduleDraw();
 }
 
 void Layer::Draw() {
+  TRACE_EVENT0("ui", "Layer::Draw");
 #if defined(USE_WEBKIT_COMPOSITOR)
   NOTREACHED();
 #else
   DCHECK(GetCompositor());
 
   if (recompute_hole_ && !parent_)
     RecomputeHole();
 
   if (!ShouldDraw())
     return;
@@ skipping 52 matching lines @@
 void Layer::notifyNeedsComposite() {
 #if defined(USE_WEBKIT_COMPOSITOR)
   ScheduleDraw();
 #else
   NOTREACHED();
 #endif
 }
 
 void Layer::paintContents(WebKit::WebCanvas* web_canvas,
                           const WebKit::WebRect& clip) {
+  TRACE_EVENT0("ui", "Layer::paintContents");
 #if defined(USE_WEBKIT_COMPOSITOR)
   gfx::CanvasSkia canvas(web_canvas);
   delegate_->OnPaintLayer(&canvas);
 #else
   NOTREACHED();
 #endif
 }
 
 float Layer::GetCombinedOpacity() const {
   float opacity = opacity_;
   Layer* current = this->parent_;
   while (current) {
     opacity *= current->opacity_;
     current = current->parent_;
   }
   return opacity;
 }
 
 void Layer::UpdateLayerCanvas() {
+  TRACE_EVENT0("ui", "Layer::UpdateLayerCanvas");
 #if defined(USE_WEBKIT_COMPOSITOR)
   NOTREACHED();
 #else
   // If we have no delegate, that means that whoever constructed the Layer is
   // setting its canvas directly with SetCanvas().
   if (!delegate_ || layer_updated_externally_)
     return;
   gfx::Rect local_bounds = gfx::Rect(gfx::Point(), bounds_.size());
   gfx::Rect draw_rect = texture_.get() ? invalid_rect_.Intersect(local_bounds) :
       local_bounds;
@@ skipping 276 matching lines @@
 #else
     unsigned int texture_id = 0;
 #endif
     web_layer_.to<WebKit::WebExternalTextureLayer>().setTextureId(
         should_draw ? texture_id : 0);
   }
 }
 #endif
 
 }  // namespace ui