Remove the system tracing from DisplayList::Replayer::replay()

https://bugs.webkit.org/show_bug.cgi?id=215933

Patch by Said Abou-Hallawa <sabouhallawa@apple.com> on 2020-08-28
Reviewed by Simon Fraser.

Remove this expensive tracing point since it can affect the tracing of
the MotionMark Design test.

* platform/graphics/displaylists/DisplayListReplayer.cpp:
(WebCore::DisplayList::Replayer::replay):

Canonical link: https://commits.webkit.org/228735@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@266286 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/WebCore/ChangeLog

@@ -1,3 +1,16 @@
+2020-08-28  Said Abou-Hallawa  <sabouhallawa@apple.com>
+
+        Remove the system tracing from DisplayList::Replayer::replay()
+        https://bugs.webkit.org/show_bug.cgi?id=215933
+
+        Reviewed by Simon Fraser.
+
+        Remove this expensive tracing point since it can affect the tracing of
+        the MotionMark Design test.
+
+        * platform/graphics/displaylists/DisplayListReplayer.cpp:
+        (WebCore::DisplayList::Replayer::replay):
+
 2020-08-28  Youenn Fablet  <youenn@apple.com>
 
         initializeReadableStream should check for highWaterMark be undefined

Source/WebCore/platform/graphics/displaylists/DisplayListReplayer.cpp

@@ -29,7 +29,6 @@
 #include "DisplayListItems.h"
 #include "GraphicsContext.h"
 #include "Logging.h"
-#include <wtf/SystemTracing.h>
 #include <wtf/text/TextStream.h>
 
 namespace WebCore {
@@ -46,7 +45,6 @@ Replayer::~Replayer() = default;
 
 std::unique_ptr<DisplayList> Replayer::replay(const FloatRect& initialClip, bool trackReplayList)
 {
-    TraceScope tracingScope(DisplayListReplayStart, DisplayListReplayEnd);
     LOG_WITH_STREAM(DisplayLists, stream << "\nReplaying with clip " << initialClip);
     UNUSED_PARAM(initialClip);