Add tracing to ResourceLoadPriorityOptimizer::updateAllImageResourcePriorities

Source/core/fetch/ResourceLoadPriorityOptimizer.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/fetch/ResourceLoadPriorityOptimizer.h"
 #include "core/rendering/RenderObject.h"
+#include "platform/TraceEvent.h"
 
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 ResourceLoadPriorityOptimizer* ResourceLoadPriorityOptimizer::resourceLoadPriorityOptimizer()
 {
     DEFINE_STATIC_LOCAL(ResourceLoadPriorityOptimizer, s_renderLoadOptimizer, ());
     return &s_renderLoadOptimizer;
 }
@@ skipping 26 matching lines @@
 void ResourceLoadPriorityOptimizer::removeRenderObject(RenderObject* renderer)
 {
     if (!renderer->hasPendingResourceUpdate())
         return;
     m_objects.remove(renderer);
     renderer->setHasPendingResourceUpdate(false);
 }
 
 void ResourceLoadPriorityOptimizer::updateAllImageResourcePriorities()
 {
+    TRACE_EVENT0("webkit", "ResourceLoadPriorityOptimizer::updateAllImageResourcePriorities");

[dsinclair, 2014/06/18 18:37:52]

I've seen some of these as "webkit" and some as "blink" is there a direction on
what we should be using?

[esprehn, 2014/06/18 19:17:06]

Lets use webkit for now, and rename them all to "blink" in one patch.

+
     m_imageResources.clear();
 
     Vector<RenderObject*> objectsToRemove;
     for (RenderObjectSet::iterator it = m_objects.begin(); it != m_objects.end(); ++it) {
         RenderObject* obj = *it;
         if (!obj->updateImageLoadingPriorities()) {
             objectsToRemove.append(obj);
         }
     }
     m_objects.removeAll(objectsToRemove);
@@ skipping 25 matching lines @@
         screenArea += static_cast<uint32_t>(screenRect.width() * screenRect.height());
 
     ImageResourceMap::AddResult result = m_imageResources.add(img->identifier(), adoptPtr(new ResourceAndVisibility(img, status, screenArea)));
     if (!result.isNewEntry && status == Visible) {
         result.storedValue->value->status = status;
         result.storedValue->value->screenArea = status;
     }
 }
 
 }